James:
To answer your questions.
1. Yes, the T-5 uses a slip yoke on the output shaft. I'm surprised that the
T-10 has a fixed yoke.
I used the yoke that came with my transmission and the guys at Frontrange
driveline on South Federal were able to put a Ford part on the differential
end of the drive shaft so it would mate up to the Ford 8".
2. You should be able to get a T-5 for a lot less that $3,000.00. I think
Dan LaGrou sells rebuilt GM T-5s for $950.00. Probably a better supply of
them in Ohio than in Colorado.
3. I think the cable is probably the same on a T-5 while they were still
using the cable driven speedometer. I think GM switched to a electronic
speedometer sometime in the 90's, but I'm not positive. I'm using a
electoronic programable VDO speedo in my car.
Another transmission you might want to consider is a T-50 from a V-8 Chevy
Monza. Jim Blackwood wrote an excellent article about this transmission in
Vol VI Issue 2 of the MG V8 newsletter. The V8 version of the transmission
with the ratios of 3.10, 1.89, 1.27, 1.00 and .84 in 1st through 5th
respectively would still work well with your stock MGB 3.9 differential gears.
3.5 or 3.31 rearend gears would be even better. The transmission weights 65
pounds compared to 80 pounds for a T-5. The shift pattern is different,
reverse being the same position as a 3 speed and 1st just below reverse. I'll
try and draw the shift pattern.
R 2 4
1 3 5
There is a reverse detent to keep you from accidently slamming it into
reverse. I don't know how easy it is to find one these transmissions since
they were probably last made in the early 80s.
Al
----- Original Message -----
From: james_nazarian@excite.com
To: wulfmgbv8@attbi.com ; mgb-v8@autox.team.net
Sent: Wednesday, December 04, 2002 10:41 PM
Subject: Re: Olds engine rebuilding
Al,
thanks for the good info. I keep reading it and letting it sink in. I
have all these ideas about the things I want to do while I have the engine out
and I am trying to prioritize, partially based on budget. I still have a few
questions.
1) I thought all of the T-5s used a slip yoke on the output shaft. My
T-10 uses a fixed yoke and a two piece drive shaft. After the debacle with the
drive shaft I had last time I'm just curious.
2) Richmond makes a 5speed T-10, new from Summit racing for $3000,
obviously more than I want to spend but I'm wondering if there is some drop in
or more direct replacement gearbox then to change to the T-5?
3) I have an electronic speedo and the sender screws into the cable
fitting in the tranny, does the T-5 use the same speedo cable thread?
thanks in advance,
James
--- On Mon 12/02, Allen Wulf < wulfmgbv8@attbi.com > wrote:
Don't about the driveshaft. I think the output shaft on a T-5 has
25splines.
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