I contacted Technical Support at Transmission Technologies,
(http://www.ttcautomotive.com/), which bought all of the manual transmission
business from Borg Warner Gear. I gave them the part numbers from both my
T5s, an S10 (not sure but I think from a V6) model and one from a base V8
Camaro. They looked up the torque ratings and told me that the S10 was rated
at 190 ft/lbs and the Camaro was good for 230 ft/lbs. I asked them what
determined the torque capacity, and they said that it is mainly metallurgy
of the gears and mainshafts. Also the first gear ratio comes into play in
determining torque ratio - the higher (lower numerically) the transmission
is geared, the higher the torque rating. I don't quite understand why this
is so, but I'll take their word for it!
The guy thought I was building a race car and suggested I obtain a T5 from a
94 Mustang Cobra "R" as this is the highest rated T5 made to date. Too bad
the bolt pattern won't work...
We further discussed the World-Class vs Non World Class versions. They told
me that this upgrade was done strictly for improved shifting and involves
different bearing types (rollers vs bushings, etc) and synchro materials,
and has nothing to do with torque capacity.
Nice folks to talk to. They had previously sent me a T5 service manual at no
charge. It fully documents all repair procedures for the T5 (now called the
Tremec T5 - all reference to Borg Warner have been removed).
Jack Halton
51 GMC 1/2 ton
Winter Park FL
----- Original Message -----
From: "Grant Galbraith" <trks@javanet.com>
To: "Dave Paulson" <my51truck@eudoramail.com>
Cc: "truck list" <oletrucks@autox.team.net>
Sent: Thursday, August 10, 2000 5:24 PM
Subject: Re: [oletrucks] more 5 speed questions
> I have heard people allude to the V-6 and/or F body being beefier than
the 4 cylinders, but I don't know if this is the case and doubt it. I have
literture from Chevy that rates the S10 variants at 175 ft,
> lbs., with no mention of engine application. I will agree that the world
class T-5's (88 and later GM and Mustangs) are suppossed to have stronger
gears/mainshafts but doesn't sound like these will work if you want
> a mechanical speedo.
> I admit to be on somehwhat of a learnig curve on theese tranny's. I
have several, wrote a tech artilcle and have used mine for 18K behind a
warmed 235. I frequently run it up to 4K rpm with crisp shifts and have
> done a burnout or two without toasting anything so far. Preferable gear
ratio's to many people come in the V-8 F body, but this will require a 2nd
tranny from a 2WD S10 to use it's tailshaft housing and mainshaft
> unless you have buckets and don't mind the shifter back under the seat.
> If anyone can shed more light on this and add to/admend the tech article
I wrote (without flamming) this info would be welcome. I only wrote the
article to help out, pass on things I've learned and avoid
> having to repeat every couple weeks.
>
> Grant
> 50 Chevy 235
> 52 GMC 150
>
>
>
> Dave Paulson wrote:
>
> > I don't want to beat this into the ground, I just want clarification. I
want to put a 5 speed in my '53 and this is what info I've gotten from
everyone here....
> >
> > The way I see it, there are two options:
> >
> > 1. Get a t-5 from a 4.3 V-6 s-10. This tranny is stout enough to go
behind my 6 cylinder. Modifications needed are a shortened input shaft.
Other than that use the s-10 clutch, etc and it goes right on. Right??
> >
> > 2. Get a beefier T-5 from a Camaro/Firebird and a tail section from a
s-10 to relocate the shifter then add the clutch, etc and bolt on. Right??
> >
> > Please make any corrections necessary. I don't want to have my truck
apart any longer than necessary. This list is an invaluable resource. Thanks
for all your answers.
> >
> > Dave Paulson
> > '51 & '53 1/2 tons
> > Spokane, WA
> >
> > oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
>
> oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
>
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
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