Gears & Axles - 8.8 Torqe Arm Mount Help
bwolfZ28
07-20-2012, 12:22 AM
I'm about 90 percent done completing my 8.8 build aside from fabricating a torque arm provision. I had seen several different styles of mounts and I was curious if anyone had an extra one laying around I could weld to my rear end. Or if someone could give me the specs on one that they built. Any help or advice would be greatly appreciated. I have a 95 mustang 8.8 housing with 10 bolt tubes. Any help or direction would be appreciated.Thanks
01transampower
07-20-2012, 06:59 AM
Talk to hilsty a member here. He has a build thread on here for his 8.8 and builds and sells a torque arm kit for an 8.8 for a very reasonable price. I just ordered mine from him to start my build.
bwolfZ28
07-20-2012, 09:56 AM
I believe the Hiltsy mount was made specifically for an Explorer Housing. I'm not too sure if it could be modified or not.
Pocket
07-20-2012, 06:42 PM
If you got this far, why not go to lowes and buy some 1/4" plate. Its not that difficult of a build
bwolfZ28
07-21-2012, 06:11 PM
Pocket: Your right. I will just go buy some plates and assorted stuff from Lowes and see what I can come up with. Everything else as far as the tubes came out mint. We machined them down and turned them on a lathe to the exact specs. I guess if we did that much the torque arm cant be that hard. I was mainly wondering if anyone had any do's or donts before I do this. I know the welding issues on the housing but I have that base covered already.
Pocket
08-02-2012, 08:12 PM
Pretty simple on the welding cast... dont do it. Weld supports from the mild steel axle tubes up to your mount and build plates that sandwich the cast iron "wings" with bolts for a solid mount
You can build it any way you like but here's mine for an idea. Basically, the two tubes prevent any up/down rotation and the plates bolted to the center section prevent side to side movement
http://i150.photobucket.com/albums/s98/Pocket_004/LS1%20M122%20project/DSC02632.jpg
http://i150.photobucket.com/albums/s98/Pocket_004/LS1%20M122%20project/DSC02633.jpg
bwolfZ28
08-02-2012, 10:49 PM
@pocket: Your idea is probably what I will end up doing. How critical is the exact placement of the mount? How did you determine how far towards the front of the pinion and how far off to the side to go? Did you just center it vertically and butt it up against the driver side wing? Sorry for all the questions.
Pocket
08-03-2012, 02:48 PM
I did the conversion on a jig built around a 10 bolt to maintain all the stock mount locations, angles etc
Just from measuring, the angle from yoke to TA mount was exactly 90*. After the install I found this was not the best for driveline angle and have plans to switch to an adjustable TA. Im not sure if this was overlooked by GM when the 10 bolt was designed or if it was my error as I never measured the original DL angle. The 8.8 diff is larger than the 10 bolt so my attempt to put the TA mount in the stock location was impossible. I mounted it as close as possible, even grinding a bit from the drivers side "wing" to push the bolt sleeves closer. Just about every swap Ive seen uses an aftermarket TA, and those always hit the trans tunnel requiring a bit of clearancing from a BFH. The stock TA clears just barely. Mine is 1.125" towards the drivers side from stock
bwolfZ28
08-04-2012, 09:32 PM
I can figure out all of the other measurements and be fine. I'm going to be working on it tomorrow. I'm just curious how you determined how far towards the front of the rear end to mount the TA bolt holes so the torque arm holes would line up and everything would be the right length?
Pocket
08-23-2012, 09:59 PM
The jig I built to weld the housing on has nuts to align the old 10 bolt TA mount. When I saw the diff was larger I just moved the mount out slightly. The rubber slider joint up front takes up the slack
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