Subject: [TR] A-type to J-type !

From: David Friedlander <[email-masked]>
Date: Wed, 30 Oct 2024 15:11:56 -0400

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Gentlemen ~

My A-type transmission (which was installed in my '74 TR6 when I got it,
many years ago), bit the dust. I have now swapped it out for a rebuilt
J-type from John Esposito at Quantum Mechanics. Though the "new"
transmission is now installed (with necessary modifications to the rear
mounting bracket) mechanically, I have a few questions.  I am wondering if
anyone else has changed from an A-type to a J-type. Among my questions is:
Since the J-type uses no overdrive relay, what does one do with the wires
that are presently connected to the OD relay my A-type needed? Also, since
the A-type functions in 2nd, 3rd and fourth and the J-type only in 3rd and
fourth, what happens with the "extra" wires at the interlock switches there?

Yes, I have Dan Masters' book... His section on Overdrives is very brief
(pages 99 and 100) and doesn't really mention swapping out procedures.

Any help/insights on these and any other differences I may yet encounter
that anyone can offer would be greatly appreciated.

Dave Friedlander
'74 TR6
'59 TR3A

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<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"font-family:comic sa=
ns ms,sans-serif;font-size:large;color:#000099">Gentlemen ~</div><div class=
=3D"gmail_default" style=3D"font-family:comic sans ms,sans-serif;font-size:=
large;color:#000099"><br></div><div class=3D"gmail_default" style=3D"font-f=
amily:comic sans ms,sans-serif;font-size:large;color:#000099">My A-type tra=
nsmission (which was installed in my &#39;74 TR6 when I got it, many years =
ago), bit the dust. I have now swapped it out for a rebuilt J-type from Joh=
n Esposito at Quantum=C2=A0Mechanics. Though the &quot;new&quot; transmissi=
on is now installed (with necessary modifications=C2=A0to the rear mounting=
 bracket) mechanically, I have a few questions.=C2=A0 I am wondering if any=
one else has changed from an A-type to a J-type. Among my questions is: Sin=
ce the J-type uses no overdrive relay, what does one do with the wires that=
 are presently connected to the OD relay my=C2=A0A-type needed? Also, since=
 the A-type functions in 2nd, 3rd and fourth and the J-type only in 3rd and=
 fourth, what happens with the &quot;extra&quot; wires at the interlock swi=
tches there?</div><div class=3D"gmail_default" style=3D"font-family:comic s=
ans ms,sans-serif;font-size:large;color:#000099"><br></div><div class=3D"gm=
ail_default" style=3D"font-family:comic sans ms,sans-serif;font-size:large;=
color:#000099">Yes, I have Dan Masters&#39; book... His section on Overdriv=
es is very brief (pages 99 and 100) and doesn&#39;t really mention swapping=
 out procedures.</div><div class=3D"gmail_default" style=3D"font-family:com=
ic sans ms,sans-serif;font-size:large;color:#000099"><br></div><div class=
=3D"gmail_default" style=3D"font-family:comic sans ms,sans-serif;font-size:=
large;color:#000099">Any help/insights on these and any other differences I=
 may yet encounter that anyone can offer would be greatly appreciated.</div=
><div class=3D"gmail_default" style=3D"font-family:comic sans ms,sans-serif=
;font-size:large;color:#000099"><br></div><div class=3D"gmail_default" styl=
e=3D"font-family:comic sans ms,sans-serif;font-size:large;color:#000099">Da=
ve Friedlander</div><div class=3D"gmail_default" style=3D"font-family:comic=
 sans ms,sans-serif;font-size:large;color:#000099">&#39;74 TR6</div><div cl=
ass=3D"gmail_default" style=3D"font-family:comic sans ms,sans-serif;font-si=
ze:large;color:#000099">&#39;59 TR3A</div></div>

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