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Peter, I agree but the same can be said about the differential bearings : the
differential can get very hot too! I would rather stay with the explanation of
Glen. B.t.w. : as the pinion is stretching, probably the preload will not cause
friction loss at all when the differential is UNDER LOAD (accelerator pedal to
the floor). Whatever the reason , you all have made it clear that the preload
is necessary.
Marcel
Van: "Peter Vucinic" <pvucinic@netspace.net.au>
Aan: "van mulders marcel" <van.mulders.marcel@telenet.be>, "barry rosenberg"
<britcars@bellsouth.net>
Cc: "fot" <fot@autox.team.net>
Verzonden: Donderdag 30 januari 2020 10:22:13
Onderwerp: RE: [Fot] Differential Pre-load
You need clearance/end float in wheel hubs with tapered roller bearings to
accommodate thermal expansion from heat generation in the braking system.
"You can Make a Small Fortune From Motor Racing. As long as You Started With A
Lage Fortune!"
Kind Regards
Peter Vucinic
TR4 - TR7 V8 - Spitfire MkII
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From: Fot [mailto:fot-bounces@autox.team.net] On Behalf Of
van.mulders.marcel--- via Fot
Sent: Thursday, 30 January 2020 8:12 PM
To: barry rosenberg
Cc: fot
Subject: Re: [Fot] Differential Pre-load
Barry, if that is true about the rollers/races, how do you explain the
prescripion about the front wheel bearings : you need to back off the stub axle
nut to get some play for the bearings?
Marcel
Van: "fot" <fot@autox.team.net>
Aan: "fubog1" <fubog1@aol.com>, "Bob Kramer" <rkramer56@gmail.com>
Cc: "fot" <fot@autox.team.net>
Verzonden: Woensdag 29 januari 2020 19:02:55
Onderwerp: Re: [Fot] Differential Pre-load
Preload is more for the life of the bearings than the gears. You preload a
bearing to take up manufacturing tolerances and account for the anticipated (by
the manufacturer of the bearings) wear during their life time. There does need
to be some 'squeeze" between the bearing races and the rollers or the rollers
will not roll in lubrication. If any of you have ever rebuilt the rear outer
suspension on old XKEs, the tapers roller bearing in the outer wishbone pivots
wear out because the wishbone only moves up and down a few degrees. The tapered
roller bearings never fully rotate and cause the rollers and race to pit.
Roller bearing must roll 360 degrees around to survive. Preload makes them do
that.
Barry
On Wednesday, January 29, 2020, 09:41:34 AM EST, Bob Kramer via Fot
<fot@autox.team.net> wrote:
I think the main reason a specified amount of preload is required is that it
sets it up so that the bearings roll under mild tension. To tight and the
components slide over each other. Too loose and they cock in place. Without
rolling, bearings will soon fail the same way a lifter that doesn't spin fails.
Bob Kramer
On Wed, Jan 29, 2020 at 8:15 AM fubog1 via Fot < [ mailto:fot@autox.team.net |
fot@autox.team.net ] > wrote:
BQ_BEGIN
Does someone know why that preload is necessary?
Yes it's basically because things want to move around a lot & the pinion wants
to stretch.with torque on/off loads.
Over time as the bearings wear, the preload will be lost, and any further wear
will cause the gears to be out of mesh and the pattern will be lost and then
they'll wear.
Glen
-----Original Message-----
From: van.mulders.marcel--- via Fot < [ mailto:fot@autox.team.net |
fot@autox.team.net ] >
To: Bill Tobin < [ mailto:william.tobin31@verizon.net |
william.tobin31@verizon.net ] >
Cc: fot < [ mailto:fot@autox.team.net | fot@autox.team.net ] >
Sent: Wed, Jan 29, 2020 8:14 am
Subject: Re: [Fot] Differential Pre-load
Does someone know why that preload is necessary? When I check a differential
before using it and I notice there is almost no preload at all, I tend to be
lazy, assuming no preload means less friction loss.
Marcel.
Van: "fot" < [ mailto:fot@autox.team.net | fot@autox.team.net ] >
Aan: "fot" < [ mailto:fot@autox.team.net | fot@autox.team.net ] >
Verzonden: Woensdag 29 januari 2020 04:06:57
Onderwerp: Re: [Fot] Differential Pre-load
Hi Scott I think that's the torque required to turn the pinion. Put a socket to
fit the pinion nut on a?? inch pound torque wrench; measure how much torque it
takes to turn the pinion. Get it turning and read the torque wrench while
turning it. 12 to 15 inch pounds sounds ok. With shims either add or remove
shims to get the correct preload. Thicker to lessen and thinner to increase I
think.
With a collapsible spacer it's easier. Keep?? tightening the nut and measuring
the preload until it's right. Small increments. If you over tighten you take it
apart and start over with a new spacer. (Ask me how I know this!)
Also a "clicker" torque wrench isn't the ticket for this. Use an older beam
type.
Hope this helps.
Cheers Bill
On 1/28/2020 4:34 PM, Scott Janzen via Fot wrote:
BQ_BEGIN
I???m rebuilding my differential. ??The manual says the pinion bearings should
be assembled with spacers to yield a??
12-16 lb/inch pre-load, using a bar affixed to the input flange and a sliding
weight. ??Of course there is a churchhill tool for that!
Either I???m not grasping the concept, or 12 lbs per inch doesn???t seem right.
??I???m guessing this is supposed to be 12 inch-pounds,
which I think means a one pound weight at the end of a 12??? lever. ??All
testing is performed with the seal removed.
Even if I am correct, I???ve got it set up with about a 1/2 lb pre-load right
now, and that feels pretty stiff already.
Anyone have any experience with this? ??This is a GT6 diff, but I???m guessing
the instructions don???t vary much.
Thanks,
Scott
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--=_ca31a228-3a53-422e-adfd-1657e5762ff5
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/*]]>*/</style></div><div>Peter, I agree but the same can be said about the=
differential bearings : the differential can get very hot too! I would rat=
her stay with the explanation of Glen. B.t.w. : as the pinion is stretching=
, probably the preload will not cause friction loss at all when the differe=
ntial is UNDER LOAD (accelerator pedal to the floor). Whatever the reason ,=
you all have made it clear that the preload is necessary.</div><div>Marcel=
</div><div><br></div><hr id=3D"zwchr" data-marker=3D"__DIVIDER__"><div data=
-marker=3D"__HEADERS__"><b>Van: </b>"Peter Vucinic" <pvucinic@netspace.n=
et.au><br><b>Aan: </b>"van mulders marcel" <van.mulders.marcel@telene=
t.be>, "barry rosenberg" <britcars@bellsouth.net><br><b>Cc: </b>"f=
ot" <fot@autox.team.net><br><b>Verzonden: </b>Donderdag 30 januari 20=
20 10:22:13<br><b>Onderwerp: </b>RE: [Fot] Differential Pre-load<br></div><=
div><br></div><div data-marker=3D"__QUOTED_TEXT__"><div class=3D"WordSectio=
n1"><p class=3D"MsoNormal"><span style=3D"font-size:14pt;font-family:'calib=
ri' , 'sans-serif';color:#1f497d">You need clearance/end float in wheel hub=
s with tapered roller bearings to accommodate thermal expansion from heat g=
eneration in the braking system.</span></p><p class=3D"MsoNormal"><span sty=
le=3D"font-size:14pt;font-family:'calibri' , 'sans-serif';color:#1f497d">&n=
bsp;</span></p><p class=3D"MsoNormal"><span style=3D"font-size:14pt;font-fa=
mily:'calibri' , 'sans-serif';color:#1f497d"> </span></p><p class=3D"M=
soNormal"><b><span lang=3D"EN-US" style=3D"font-size:11pt;font-family:'cali=
bri' , 'sans-serif';color:#7030a0">"You can Make a Small Fortune From Motor=
Racing. As long as You Started With A Lage Fortune!"</span></b></p><p clas=
s=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11pt;font-family:'c=
alibri' , 'sans-serif';color:#1f497d">Kind Regards</span></p><p class=3D"Ms=
oNormal"><span lang=3D"EN-US" style=3D"font-size:11pt;font-family:'calibri'=
, 'sans-serif';color:#1f497d">Peter Vucinic</span></p><p class=3D"MsoNorma=
l"><span lang=3D"EN-US" style=3D"font-size:11pt;font-family:'calibri' , 'sa=
ns-serif';color:#1f497d">TR4 - TR7 V8 - Spitfire MkII</span></p><p class=3D=
"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11pt;font-family:'calib=
ri' , 'sans-serif';color:#1f497d">_________________________________________=
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ox.team.net</a></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" style=
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-family:'consolas';color:#1f497d"><a href=3D"http://www.fot-racing.com/"; ta=
rget=3D"_blank" rel=3D"nofollow noopener noreferrer">http://www.fot-racing.=
com</a></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font=
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span></p><p class=3D"MsoNormal"><span style=3D"font-size:14pt;font-family:'=
calibri' , 'sans-serif';color:#1f497d"> </span></p><p class=3D"MsoNorm=
al"><span style=3D"font-size:14pt;font-family:'calibri' , 'sans-serif';colo=
r:#1f497d"> </span></p><p class=3D"MsoNormal"><span style=3D"font-size=
:14pt;font-family:'calibri' , 'sans-serif';color:#1f497d"> </span></p>=
<p class=3D"MsoNormal"><span style=3D"font-size:14pt;font-family:'calibri' =
, 'sans-serif';color:#1f497d"> </span></p><div><div style=3D"border:no=
ne;border-top:solid #b5c4df 1pt;padding:3pt 0cm 0cm 0cm"><p class=3D"MsoNor=
mal" style=3D"margin-left:36pt"><b><span lang=3D"EN-US" style=3D"font-size:=
10pt;font-family:'tahoma' , 'sans-serif'">From:</span></b><span lang=3D"EN-=
US" style=3D"font-size:10pt;font-family:'tahoma' , 'sans-serif'"> Fot [mail=
to:fot-bounces@autox.team.net] <b>On Behalf Of </b>van.mulders.marcel--- vi=
a Fot<br><b>Sent:</b> Thursday, 30 January 2020 8:12 PM<br><b>To:</b> barry=
rosenberg<br><b>Cc:</b> fot<br><b>Subject:</b> Re: [Fot] Differential Pre-=
load</span></p></div></div><p class=3D"MsoNormal" style=3D"margin-left:36pt=
"> </p><div><div><p class=3D"MsoNormal" style=3D"margin-left:36pt"><sp=
an style=3D"font-size:10pt;font-family:'verdana' , 'sans-serif';color:black=
">Barry, if that is true about the rollers/races, how do you explain the pr=
escripion about the front wheel bearings : you need to back off the stub ax=
le nut to get some play for the bearings?</span></p></div><div><p class=3D"=
MsoNormal" style=3D"margin-left:36pt"><span style=3D"font-size:10pt;font-fa=
mily:'verdana' , 'sans-serif';color:black">Marcel</span></p></div><div><p c=
lass=3D"MsoNormal" style=3D"margin-left:36pt"><span style=3D"font-size:10pt=
;font-family:'verdana' , 'sans-serif';color:black"> </span></p></div><=
div class=3D"MsoNormal" align=3D"center" style=3D"margin-left:36pt;text-ali=
gn:center"><span style=3D"font-size:10pt;font-family:'verdana' , 'sans-seri=
f';color:black"><hr size=3D"2" width=3D"100%" align=3D"center" id=3D"zwchr"=
></span></div><div><p class=3D"MsoNormal" style=3D"margin-left:36pt"><b><sp=
an style=3D"font-size:10pt;font-family:'verdana' , 'sans-serif';color:black=
">Van: </span></b><span style=3D"font-size:10pt;font-family:'verdana' , 'sa=
ns-serif';color:black">"fot" <fot@autox.team.net><br><b>Aan: </b>"fub=
og1" <fubog1@aol.com>, "Bob Kramer" <rkramer56@gmail.com><br><b=
>Cc: </b>"fot" <fot@autox.team.net><br><b>Verzonden: </b>Woensdag 29 =
januari 2020 19:02:55<br><b>Onderwerp: </b>Re: [Fot] Differential Pre-load<=
/span></p></div><div><p class=3D"MsoNormal" style=3D"margin-left:36pt"><spa=
n style=3D"font-size:10pt;font-family:'verdana' , 'sans-serif';color:black"=
> </span></p></div><div><div><div><p class=3D"MsoNormal" style=3D"marg=
in-left:36pt"><span style=3D"font-size:10pt;font-family:'helvetica' , 'sans=
-serif';color:black">Preload is more for the life of the bearings than the =
gears. You preload a bearing to take up manufacturing tolerances and accoun=
t for the anticipated (by the manufacturer of the bearings) wear during the=
ir life time. There does need to be some 'squeeze" between the bearing race=
s and the rollers or the rollers will not roll in lubrication. If any of yo=
u have ever rebuilt the rear outer suspension on old XKEs, the tapers rolle=
r bearing in the outer wishbone pivots wear out because the wishbone only m=
oves up and down a few degrees. The tapered roller bearings never fully rot=
ate and cause the rollers and race to pit. Roller bearing must roll 360 deg=
rees around to survive. Preload makes them do that.</span></p></div><div><p=
class=3D"MsoNormal" style=3D"margin-left:36pt"><span style=3D"font-size:10=
pt;font-family:'helvetica' , 'sans-serif';color:black"> </span></p></d=
iv><div><p class=3D"MsoNormal" style=3D"margin-left:36pt"><span style=3D"fo=
nt-size:10pt;font-family:'helvetica' , 'sans-serif';color:black">Barry</spa=
n></p></div><p class=3D"MsoNormal" style=3D"margin-left:36pt"><span style=
=3D"font-size:10pt;font-family:'helvetica' , 'sans-serif';color:black">&nbs=
p;</span></p></div><div id=3D"ydpf5f47a82yahoo_quoted_0792558679"><div><div=
><p class=3D"MsoNormal" style=3D"margin-left:36pt"><span style=3D"font-size=
:10pt;font-family:'helvetica' , 'sans-serif';color:#26282a">On Wednesday, J=
anuary 29, 2020, 09:41:34 AM EST, Bob Kramer via Fot <fot@autox.team.net=
> wrote: </span></p></div><p class=3D"MsoNormal" style=3D"margin-right:0=
cm;margin-bottom:12pt;margin-left:36pt"><span style=3D"font-size:10pt;font-=
family:'helvetica' , 'sans-serif';color:#26282a"> </span></p><div><div=
id=3D"ydpf5f47a82yiv1894590979"><div><div><p class=3D"MsoNormal" style=3D"=
margin-left:36pt"><span style=3D"font-size:10pt;font-family:'helvetica' , '=
sans-serif';color:#26282a">I think the main reason a specified amount of&nb=
sp; preload is required is that it sets it up so that the bearings roll und=
er mild tension. To tight and the components slide over each other. T=
oo loose and they cock in place. Without rolling, bearings will soon fail t=
he same way a lifter that doesn't spin fails.</span></p><div><p class=3D"Ms=
oNormal" style=3D"margin-left:36pt"><span style=3D"font-size:10pt;font-fami=
ly:'helvetica' , 'sans-serif';color:#26282a"><br clear=3D"all"></span></p><=
div><div><div><p class=3D"MsoNormal" style=3D"margin-left:36pt"><span style=
=3D"font-size:10pt;font-family:'helvetica' , 'sans-serif';color:#26282a">Bo=
b Kramer</span></p></div></div></div><p class=3D"MsoNormal" style=3D"margin=
-left:36pt"><span style=3D"font-size:10pt;font-family:'helvetica' , 'sans-s=
erif';color:#26282a"> </span></p></div></div><p class=3D"MsoNormal" st=
yle=3D"margin-left:36pt"><span style=3D"font-size:10pt;font-family:'helveti=
ca' , 'sans-serif';color:#26282a"> </span></p><div><div id=3D"ydpf5f47=
a82yiv1894590979yqt53328"><div><p class=3D"MsoNormal" style=3D"margin-left:=
36pt"><span style=3D"font-size:10pt;font-family:'helvetica' , 'sans-serif';=
color:#26282a">On Wed, Jan 29, 2020 at 8:15 AM fubog1 via Fot <<a href=
=3D"mailto:fot@autox.team.net"; target=3D"_blank" rel=3D"nofollow noopener n=
oreferrer">fot@autox.team.net</a>> wrote:</span></p></div><blockquote st=
yle=3D"border:none;border-left:solid #cccccc 1pt;padding:0cm 0cm 0cm 6pt;ma=
rgin-left:4.8pt;margin-right:0cm"><div><div><p class=3D"MsoNormal" style=3D=
"margin-left:36pt"><span style=3D"font-size:10pt;font-family:'arial' , 'san=
s-serif';color:black"> </span></p></div><div><blockquote style=3D"bord=
er:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm 2pt;margin-top:5pt=
;margin-bottom:5pt"><p class=3D"MsoNormal" style=3D"margin-left:36pt"><span=
style=3D"font-size:10pt;font-family:'arial' , 'sans-serif';color:black">Do=
es someone know why that preload is necessary? </span></p></blockquote></di=
v><div><p class=3D"MsoNormal" style=3D"margin-left:36pt"><span style=3D"fon=
t-size:10pt;font-family:'arial' , 'sans-serif';color:black">Yes it's basica=
lly because things want to move around a lot & the pinion wants to stre=
tch.with torque on/off loads.</span></p></div><div><p class=3D"MsoNormal" s=
tyle=3D"margin-left:36pt"><span style=3D"font-size:10pt;font-family:'arial'=
, 'sans-serif';color:black">Over time as the bearings wear, the preload wi=
ll be lost, and any further wear will cause the gears to be out of mesh and=
the pattern will be lost and then they'll wear.</span></p></div><div><p cl=
ass=3D"MsoNormal" style=3D"margin-left:36pt"><span style=3D"font-size:10pt;=
font-family:'arial' , 'sans-serif';color:black">Glen</span></p></div><div><=
p class=3D"MsoNormal" style=3D"margin-left:36pt"><span style=3D"font-size:1=
0pt;font-family:'arial' , 'sans-serif';color:black"> </span></p></div>=
<div><p class=3D"MsoNormal" style=3D"margin-left:36pt"><span style=3D"font-=
size:10pt;font-family:'arial' , 'sans-serif';color:black"> </span></p>=
</div><div><p class=3D"MsoNormal" style=3D"margin-right:0cm;margin-bottom:1=
2pt;margin-left:36pt"><span style=3D"font-size:10pt;font-family:'arial' , '=
sans-serif';color:black">-----Original Message-----<br>From: van.mulders.ma=
rcel--- via Fot <<a href=3D"mailto:fot@autox.team.net"; target=3D"_blank"=
rel=3D"nofollow noopener noreferrer">fot@autox.team.net</a>><br>To: Bil=
l Tobin <<a href=3D"mailto:william.tobin31@verizon.net"; target=3D"_blank=
" rel=3D"nofollow noopener noreferrer">william.tobin31@verizon.net</a>><=
br>Cc: fot <<a href=3D"mailto:fot@autox.team.net"; target=3D"_blank" rel=
=3D"nofollow noopener noreferrer">fot@autox.team.net</a>><br>Sent: Wed, =
Jan 29, 2020 8:14 am<br>Subject: Re: [Fot] Differential Pre-load</span></p>=
<div id=3D"ydpf5f47a82yiv1894590979gmail-m_-29625174874098953yiv6457723921"=
><div><div><div><p class=3D"MsoNormal" style=3D"margin-left:36pt"><span sty=
le=3D"font-size:10pt;font-family:'verdana' , 'sans-serif';color:black">Does=
someone know why that preload is necessary? When I check a differential be=
fore using it and I notice there is almost no preload at all, I tend to be =
lazy, assuming no preload means less friction loss.</span></p></div><div><p=
class=3D"MsoNormal" style=3D"margin-left:36pt"><span style=3D"font-size:10=
pt;font-family:'verdana' , 'sans-serif';color:black">Marcel.</span></p></di=
v><div><p class=3D"MsoNormal" style=3D"margin-left:36pt"><span style=3D"fon=
t-size:10pt;font-family:'verdana' , 'sans-serif';color:black"> </span>=
</p></div><div class=3D"MsoNormal" align=3D"center" style=3D"margin-left:36=
pt;text-align:center"><span style=3D"font-size:10pt;font-family:'verdana' ,=
'sans-serif';color:black"><hr size=3D"2" width=3D"100%" align=3D"center" i=
d=3D"ydpf5f47a82yiv1894590979gmail-m_-29625174874098953yiv6457723921zwchr">=
</span></div><div id=3D"ydpf5f47a82yiv1894590979gmail-m_-29625174874098953y=
iv6457723921yqtfd62075"><div><p class=3D"MsoNormal" style=3D"margin-left:36=
pt"><b><span style=3D"font-size:10pt;font-family:'verdana' , 'sans-serif';c=
olor:black">Van: </span></b><span style=3D"font-size:10pt;font-family:'verd=
ana' , 'sans-serif';color:black">"fot" <<a href=3D"mailto:fot@autox.team=
.net" target=3D"_blank" rel=3D"nofollow noopener noreferrer">fot@autox.team=
.net</a>><br><b>Aan: </b>"fot" <<a href=3D"mailto:fot@autox.team.net"=
target=3D"_blank" rel=3D"nofollow noopener noreferrer">fot@autox.team.net<=
/a>><br><b>Verzonden: </b>Woensdag 29 januari 2020 04:06:57<br><b>Onderw=
erp: </b>Re: [Fot] Differential Pre-load</span></p></div><div><p class=3D"M=
soNormal" style=3D"margin-left:36pt"><span style=3D"font-size:10pt;font-fam=
ily:'verdana' , 'sans-serif';color:black"> </span></p></div></div><div=
><div id=3D"ydpf5f47a82yiv1894590979gmail-m_-29625174874098953yiv6457723921=
yqtfd34314"><div><p class=3D"MsoNormal" style=3D"margin-left:36pt"><span st=
yle=3D"font-size:10pt;font-family:'verdana' , 'sans-serif';color:black">Hi =
Scott I think that's the torque required to turn the pinion. Put a socket t=
o fit the pinion nut on a?? inch pound torque wrench; measure how much torq=
ue it takes to turn the pinion. Get it turning and read the torque wrench w=
hile turning it. 12 to 15 inch pounds sounds ok. With shims either add or r=
emove shims to get the correct preload. Thicker to lessen and thinner to in=
crease I think.</span></p></div><div><p class=3D"MsoNormal" style=3D"margin=
-left:36pt"><span style=3D"font-size:10pt;font-family:'verdana' , 'sans-ser=
if';color:black">With a collapsible spacer it's easier. Keep?? tightening t=
he nut and measuring the preload until it's right. Small increments. If you=
over tighten you take it apart and start over with a new spacer. (Ask me h=
ow I know this!)</span></p></div><div><p class=3D"MsoNormal" style=3D"margi=
n-left:36pt"><span style=3D"font-size:10pt;font-family:'verdana' , 'sans-se=
rif';color:black">Also a "clicker" torque wrench isn't the ticket for this.=
Use an older beam type.</span></p></div><div><p class=3D"MsoNormal" style=
=3D"margin-left:36pt"><span style=3D"font-size:10pt;font-family:'verdana' ,=
'sans-serif';color:black">Hope this helps.</span></p></div><div><p class=
=3D"MsoNormal" style=3D"margin-left:36pt"><span style=3D"font-size:10pt;fon=
t-family:'verdana' , 'sans-serif';color:black">Cheers Bill</span></p></div>=
<div><p class=3D"MsoNormal" style=3D"margin-left:36pt"><span style=3D"font-=
size:10pt;font-family:'verdana' , 'sans-serif';color:black">On 1/28/2020 4:=
34 PM, Scott Janzen via Fot wrote:</span></p></div><blockquote style=3D"mar=
gin-top:5pt;margin-bottom:5pt"><p class=3D"MsoNormal" style=3D"margin-left:=
36pt"><span style=3D"font-size:10pt;font-family:'verdana' , 'sans-serif';co=
lor:black">I???m rebuilding my differential. ??The manual says the pinion b=
earings should be assembled with spacers to yield a?? </span></p><div><p cl=
ass=3D"MsoNormal" style=3D"margin-left:36pt"><u><span style=3D"font-size:10=
pt;font-family:'verdana' , 'sans-serif';color:black">12-16 lb/inch pre-load=
,</span></u><span style=3D"font-size:10pt;font-family:'verdana' , 'sans-ser=
if';color:black"> using a bar affixed to the input flange and a sliding wei=
ght. ??Of course there is a churchhill tool for that!</span></p></div><div>=
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span style=3D"font-size:=
10pt;font-family:'verdana' , 'sans-serif';color:black"> </span></p></d=
iv><div><p class=3D"MsoNormal" style=3D"margin-left:36pt"><span style=3D"fo=
nt-size:10pt;font-family:'verdana' , 'sans-serif';color:black">Either I???m=
not grasping the concept, or 12 lbs <u>per</u> inch doesn???t seem right. =
??I???m guessing this is supposed to be 12 inch-pounds,</span></p></div><di=
v><p class=3D"MsoNormal" style=3D"margin-left:36pt"><span style=3D"font-siz=
e:10pt;font-family:'verdana' , 'sans-serif';color:black">which I think mean=
s a one pound weight at the end of a 12??? lever. ??All testing is performe=
d with the seal removed.</span></p></div><div><p class=3D"MsoNormal" style=
=3D"margin-left:36pt"><span style=3D"font-size:10pt;font-family:'verdana' ,=
'sans-serif';color:black"> </span></p></div><div><p class=3D"MsoNorma=
l" style=3D"margin-left:36pt"><span style=3D"font-size:10pt;font-family:'ve=
rdana' , 'sans-serif';color:black">Even if I am correct, I???ve got it set =
up with about a 1/2 lb pre-load right now, and that feels pretty stiff alre=
ady.</span></p></div><div><p class=3D"MsoNormal" style=3D"margin-left:36pt"=
><span style=3D"font-size:10pt;font-family:'verdana' , 'sans-serif';color:b=
lack"> </span></p></div><div><p class=3D"MsoNormal" style=3D"margin-le=
ft:36pt"><span style=3D"font-size:10pt;font-family:'verdana' , 'sans-serif'=
;color:black">Anyone have any experience with this? ??This is a GT6 diff, b=
ut I???m guessing the instructions don???t vary much.</span></p></div><div>=
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><span style=3D"font-size:=
10pt;font-family:'verdana' , 'sans-serif';color:black"> </span></p></d=
iv><div><p class=3D"MsoNormal" style=3D"margin-left:36pt"><span style=3D"fo=
nt-size:10pt;font-family:'verdana' , 'sans-serif';color:black">Thanks,</spa=
n></p></div><div><p class=3D"MsoNormal" style=3D"margin-left:36pt"><span st=
yle=3D"font-size:10pt;font-family:'verdana' , 'sans-serif';color:black">Sco=
tt</span></p></div><p class=3D"MsoNormal" style=3D"margin-left:36pt"><span =
style=3D"font-size:10pt;font-family:'verdana' , 'sans-serif';color:black"><=
br><br></span></p><pre style=3D"margin-left:36pt"><span style=3D"color:blac=
k">_______________________________________________</span></pre><pre style=
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ox.team.net</a></span></pre><pre style=3D"margin-left:36pt"><span style=3D"=
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