umi adjustable t/a..pinion angle??????

**blue02Z** · 07-15-2010, 03:15 PM

what do you guys that have the umi tunnel brace mounted adjustable torque arm set you pinion angle at? i have tried -3* and -1* but i still have driveline vibration. just looking for some other opinions

**35th-ANV-SS** · 07-15-2010, 03:16 PM

-2

Are you sure your vibration is not the tranny mounts?

**67CamaroRSSS** · 07-15-2010, 06:39 PM

My adjustable T/A (not UMI though) is a hair over -2 deg.

**xmarkx** · 07-15-2010, 07:46 PM

I'm in the process of setting mine right now. the directions say that the best setting is -2. to get that number you have to put the rear end number with the driveshaft number and it should equal -2.my drive shaft is +1 so that means that I have to set the rear end to -4????

**35th-ANV-SS** · 07-15-2010, 08:34 PM

http://www.ls1.com/forums/showthread.php?t=16319

**Mr. Luos** · 07-15-2010, 08:48 PM

-2.3 on mine.
A4 will like a little less.

**blue02Z** · 07-16-2010, 05:22 AM

Yeah that what they say. I think i have it figured out for now but we will see. Thanks guys

**shady milkman** · 07-16-2010, 06:21 AM

Originally Posted by xmarkx

i'm in the process of setting mine right now. The directions say that the best setting is -2. To get that number you have to put the rear end number with the driveshaft number and it should equal -2.my drive shaft is +1 so that means that i have to set the rear end to -4????

1+ -4 = -3

**xmarkx** · 07-16-2010, 07:02 AM

ok so if I want it at -2 then I need to set the rear to -3

**UMI Sales** · 07-16-2010, 07:02 AM

Hello
Like mentioned above. We do recommend for the best all around performance is -2 degrees. But to make it easier and less confusing feel free to give me a call and I will be more than glad to explain over the phone. I will be in the office 8am-4:30EST M-F (814) 857-5400 if you have any other questions feel free to ask.
Thanks
Brad