T-5 Install Help- Transmission Mount
Thread Starter
Melting Slicks
Joined: May 2005
Posts: 2,486
Likes: 71
From: Elkhart Lake, Wisconsin
T-5 Install Help- Transmission Mount
Well I'm pretty far along on my T-5 install but now it is time to modify or make a trans mount bracket. The problem is I don't know how high or low to mount it. The body is off and I can't use that as a guide etc. I was thinking if I could get a dimension on a stock installed Muncie from the centerline of the output shaft to the top of the cross member that would get me close to where I need to be for driveshaft alignment for the T-5. Or if any of you have done this, how much do I have to drop from where the stock Muncie mount is to get the proper alignment? The last thing I want to do is get it all done and when I drop the body it's not at the right height. This frame has the removable cross member because it was a replacement frame put in 20+ years ago. Any help would be appreciated!
Safety Car
Joined: Aug 2001
Posts: 4,883
Likes: 11
From: North Easton Mass
The important measurement is the driveline angle. If the diff yolk is 3 degrees off vertical for example, the transmission yolk should also be 3 degrees off in the opposite direction. I think if you are off by more than a degree or so you risk the chance of driveshaft vibration. I have to fab a mount for the t56 that I'm using and I'm going to have to go through the same hurdles. Good luck.
Rick B.
Rick B.
Melting Slicks
Joined: Oct 2004
Posts: 2,662
Likes: 8
From: Knoxville Tennessee
Are you using a ford or chevy T5. I used the stock ford T5 tranny mount which has the necessary angle for it to lean to the left. Under the mount I had to add spacers that raised the tranny about 1/2 inch. That should get you to the right height and have the u-joints at the right angles. Hope this helps. It is easy to adjust after the body is on if you have to.
Bernie
Bernie
Thread Starter
Melting Slicks
Joined: May 2005
Posts: 2,486
Likes: 71
From: Elkhart Lake, Wisconsin
Bernie, It's a Ford T-5 and I'm using a Urethane mount for a Ford and it will have the correct lean because it will be square to the ground, but It would seem to be to high if I did what you suggest. I'll put it up where you suggest and check the drive shaft angles to see where they are at. There may be some variance in the Ford mounts thats why I was looking for a dimension from the centerline of the output shaft to the top of the cross member as that should put it close for a start.
Racer
Joined: Mar 2007
Posts: 274
Likes: 0
From: Fairview TX
You need to do this by setting the angle relative to the diff. There are threads on how to do this and some good explanations with diagrams on the net.
BTW, if you don't go with a yoke with caps it's going to be a bugger to ever get that shaft out again.
If the T5 is the same as a TKO (i.e. same as a C6), it's $200+ for the right yoke...
BTW, if you don't go with a yoke with caps it's going to be a bugger to ever get that shaft out again.
If the T5 is the same as a TKO (i.e. same as a C6), it's $200+ for the right yoke...
Drifting
Joined: Jan 2002
Posts: 1,606
Likes: 1
From: Las Cruces NM
Have you tried contacting Kiesler? They're customer service is really good and the guys there are pretty knowledgable. They make a kit with the whole setup, but I think they'll sell you individual pieces and they make a bracket specifically for that.
C
C
Thread Starter
Melting Slicks
Joined: May 2005
Posts: 2,486
Likes: 71
From: Elkhart Lake, Wisconsin
The yoke is the press in cap style, $22.50 I have seen the threads and I have a digital inclinometer which should do the trick on reading the angles.
I have not talked to Keisler. It's no problem to fab a mount just don't want to do it twice. I will check if they already have a mount that would be great.
I have not talked to Keisler. It's no problem to fab a mount just don't want to do it twice. I will check if they already have a mount that would be great.
Safety Car
Joined: Oct 2005
Posts: 3,570
Likes: 1
From: Algonac Michigan
You need to do this by setting the angle relative to the diff. There are threads on how to do this and some good explanations with diagrams on the net.
BTW, if you don't go with a yoke with caps it's going to be a bugger to ever get that shaft out again.
If the T5 is the same as a TKO (i.e. same as a C6), it's $200+ for the right yoke...
BTW, if you don't go with a yoke with caps it's going to be a bugger to ever get that shaft out again.
If the T5 is the same as a TKO (i.e. same as a C6), it's $200+ for the right yoke...
Mark
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
5 MOST and 5 LEAST Popular Corvette Model Years in History!
Joe Kucinski
2027 Corvette Buyer's Guide: Everything You Need to Know!
Joe Kucinski
10 Things C8 Corvette Owners Hate (But Won't Tell You)
Joe Kucinski
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!
Brett Foote
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)
Joe Kucinski
Race Director
Joined: Mar 2001
Posts: 11,322
Likes: 1
From: Living in the Hartland
The important measurement is the driveline angle. If the diff yolk is 3 degrees off vertical for example, the transmission yolk should also be 3 degrees off in the opposite direction. I think if you are off by more than a degree or so you risk the chance of driveshaft vibration. I have to fab a mount for the t56 that I'm using and I'm going to have to go through the same hurdles. Good luck.
Rick B.
Rick B.
Safety Car
Joined: Aug 2001
Posts: 4,883
Likes: 11
From: North Easton Mass
In the case of the T56 I ended up lowering the tail of the trans as far as I could go in the stock crossmember to get clearance in the tunnel. The T56 is 3 or 4" longer than the 4-speed, so the driveshaft angle comes from the side rather than from the top. My thinking was that the U-joints weren't going to care where the offset angle was as long as it was there. I have been driving the car for 2 summers now and I've had no vibration problems at all.
Rick B.
Rick B.
Safety Car
Joined: Aug 2001
Posts: 4,883
Likes: 11
From: North Easton Mass
Rick B.
Le Mans Master
Joined: Jan 2003
Posts: 6,575
Likes: 1
From: Tuttle OK
Cruise-In VIII Veteran
Here's what I did, call me bubba.. 
Our language is pretty bad so if your easily offended, please don't click.
Our language is pretty bad so if your easily offended, please don't click.
Le Mans Master
Joined: Dec 2003
Posts: 5,380
Likes: 415
From: N J
When I did my T5 I used the same height that was there from the prior trans. Took a measurment from the top of the crossmember to the bottom of the driveshaft back by the rear mount area. Put it back at the same height. No vibrations, no problems.
