dunhamr1 Ryan Dunham Mega Moderator Location: Hurst, TX Join Date: 09/17/2015 Age: Settling Down Posts: 158 Rally Car: 1989 Merkur XR4Ti |
Ooh goodie me! So the Volvo and Ford Bellhousing patterns are the same? This is a Merkur so the block is straight up. I guess the rotation was for packaging in the Camaro/Firebird, so it doesn't NEED to be mounted that way for my application (other than having to have a mount to correct it somewhere, either keep it rotated at the bellhousing and have a flat trans mount, or straight up at the bellhousing and an angled trans mount). |
dunhamr1 Ryan Dunham Mega Moderator Location: Hurst, TX Join Date: 09/17/2015 Age: Settling Down Posts: 158 Rally Car: 1989 Merkur XR4Ti |
Well luckily all the T5 stuff isn't in the car yet, I can continue to use the stock T9 in the interim |
Shoot! Derp. I realized the volvo pattern is offset. The Volvo and Ford t5 are different. The T5 and GM/TKO pattern are in-line/parallel with each other. So... Mounting the Gm trans to the ford bellhousing is possible if you can get the input shaft length correct. Another option is to weld on ears for the wider GM mount locations, or drill holes. I'm sure you know someone that can weld aluminum and doesn't mind a fun challenge. |
dunhamr1 Ryan Dunham Mega Moderator Location: Hurst, TX Join Date: 09/17/2015 Age: Settling Down Posts: 158 Rally Car: 1989 Merkur XR4Ti |
Just called the guys about that adapter, I'm not too worried about the rotation (I guess the Volvo bolt holes would go unused). T5 holes would mount to Bellhousing, and TKO holes would go to Chevy T5 trans. I would make an offset mount for the crossmember to take that up. It wouldn't NEED to be rotated for my application. My only concern would be the pass-through hole. They said their adapter has a 5 1/4" OD on the lip, I'm going to measure (or try to look up) what the T5 Bellhousing has in it. He suggested machining the bellhousing to .001" over and press-fit it. |
dunhamr1 Ryan Dunham Mega Moderator Location: Hurst, TX Join Date: 09/17/2015 Age: Settling Down Posts: 158 Rally Car: 1989 Merkur XR4Ti |
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That can all be done on a manual milling machine. I've made some incredibly accurate parts using manual machines and layout ink. |
dunhamr1 Ryan Dunham Mega Moderator Location: Hurst, TX Join Date: 09/17/2015 Age: Settling Down Posts: 158 Rally Car: 1989 Merkur XR4Ti |
Well yes, that too. Hmm, I may need to get in touch with the machinist at my college and perhaps pick something up during Prescott Rally... |
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dunhamr1 Ryan Dunham Mega Moderator Location: Hurst, TX Join Date: 09/17/2015 Age: Settling Down Posts: 158 Rally Car: 1989 Merkur XR4Ti |
If you're up for it, that's probably the most direct route to get this mounted.. I'll have to make some measurements. For the input shaft, what should I measure? |
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dunhamr1 Ryan Dunham Mega Moderator Location: Hurst, TX Join Date: 09/17/2015 Age: Settling Down Posts: 158 Rally Car: 1989 Merkur XR4Ti |
Best I can tell in the dark with calipers is 5.539" from mating face of transmission to end of the splines (where it necks down for the pilot bearing) and another 1.076" to the tip of the input shaft. I have a 4cyl t5 I can measure up as well to get a baseline and make sure we're measuring the same thing. |
dunhamr1 Ryan Dunham Mega Moderator Location: Hurst, TX Join Date: 09/17/2015 Age: Settling Down Posts: 158 Rally Car: 1989 Merkur XR4Ti |
Reading up on things more, and taking the bellhousing off of the Camaro box, I've discovered that it's a NWC. My ford case is WC, so that nixes any idea of swapping THOSE gears into THIS case.
Now, I still might be able to pick up some World Class 2.95 gears, and that might work.. Hopefully we can do something with adapter plates and not have to disassemble some transmissions... EDIT: After talking with High Performance Transmissions (5speeds.com), as long as the transmissions are both NWC, or both WC, the gears can be swapped between them. Lining up input shaft lengths and diameters is separate issue. Edited 1 time(s). Last edit at 06/30/2017 09:11AM by dunhamr1. |
deaner Dane Aura Infallible Moderator Location: Caldwell, ID Join Date: 07/07/2013 Age: Settling Down Posts: 346 Rally Car: PS4 controller |
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dunhamr1 Ryan Dunham Mega Moderator Location: Hurst, TX Join Date: 09/17/2015 Age: Settling Down Posts: 158 Rally Car: 1989 Merkur XR4Ti |
Yeah. Hard part will be input shaft lengths / dia I can't swap the gears from the 2.95 box that I have into the Ford case I can because one is WC (Ford box) and the other is NWC (GM). I'll need to get WC 2.95 gears to use the case that I have, unless I can get a NWC Ford case decently cheap. |
How many teeth are on the input shaft of the gm trans?
Pull the four bolts holding the front cover on, pop the cover, rotate input shaft until the half-moon cutout clears the lower counter gear and remove. Keep the tail of the trans high so all of the roller bearings don't fall into the bottom. |