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Making some changes...

This is a discussion on Making some changes... within the Suspension and Handling forums, part of the General Help category; I have a few questions hoping to get some help on... I recently installed a UMI tourqe are relocation bracket ...

  1. #1
    Senior Member kingls1's Avatar
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    Making some changes...

    I have a few questions hoping to get some help on...

    I recently installed a UMI tourqe are relocation bracket on my TA and opened up a whole can of pinion angle problems mostly because I have a Non Adjustable TArm so I plan to replace it with a adjustable one this spring because after looking for a tail shaft housing and seeing the price of the housings for the F-body its dam near the price of the adjustable TA so I'm keeping the relocation bracket... Another thing I think is contributing to the pinion angle problems is the installation of the Strange S60 rear I feel lifted the back up some as it's just a bigger unit..
    So I was considering dropping the rear springs 3/4 of a inch to LEVEL the car. I have non adjustable LAC's... Can I lower it that small amount and what I'm thinking bringing it back to more a stock ride height along with the adjustable TA to fine tune the pinion angle with out using adjustable LAC's????
    Hope not to confusing

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    Shouldn't present any issues with non-adjustable LCAs. My car is lowered with a 9" and my LCAs aren't adjustable. My wheels are perfectly centered in the wheel well.

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    Are you running the factory rubber cushion at the top of the rear springs?

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    Senior Member kingls1's Avatar
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    Quote Originally Posted by pajeff02 View Post
    Are you running the factory rubber cushion at the top of the rear springs?
    Yes, everything went back in stock.... Why do you ask??
    Sorry for not replying sooner just crazy busy lately
    99 Trans Am, SLP Lid, Blackwing filter, smooth bellow, Ported TB, LS6 intake, Ws6 lower ram air box, OBX LT's, Magna Flow cat back, LS7 clutch, Tick MC, Hurst Shifter, Frost Tune, UMI SFC,LAC, STB, PB, Torq Arm, Super Hawk hood, Torq Thrust II, Kee Audio.
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    Quick way to drop it a bit is to remove the pad and just run some heater hose over the top loop.

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    Senior Member kingls1's Avatar
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    I really don't know how much yet until I get it out and take some measurements and that will be something I consider...thanks

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    Senior Member kingls1's Avatar
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    Got my new UMI adjustable TA at Spring Carlisle pulled off the new old one and mocked up the new set up. Wanted to use the inside mounting holes but bracket wast hitting center section on my S60 so I went with the holes that lined up. After cycling the suspension I quickly realized first bump was certain under body damage. So off comes the bracket and modify it to fit the inside holes. Just wondering why UMI don't have the right bracket for different rear end's with out having to modify them? More to come soon

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    Senior Member kingls1's Avatar
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    Also removed the spring perch rubbers and installed the rubber hose.. Hasn't been on the ground yet but I can see there will be a difference just by the size of them

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    Spaz is My Mentor SMWS6TA's Avatar
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    Making some changes...

    try having a custom 8.8.....lol.


    I had to also heavily modify my mounting bracket as well to get enough room so that it does rub or crush the floor pan bump under the drv side rear seat.

    I also fliped my bolts that mount to the rear and torque arm to where the nuts are on top and secured them by using lock washer and red locktite. Makes it easier to install them.

    For pinon angle you need to remove the drive shaft and try to get it on a drive on lift so you're at ride height and suspension is loaded. Next use angle finder on the output shaft of the transmission and on the pinon after you remove the drive shaft. Make adjustments on the torque arm to equal the measurement taken off the transmission output shaft but opposite. For example.

    Transmission reads +2
    Pinon needs to read -2

    This will equal out the drive shaft and eliminate any binding on the u joints.
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    I ground the front corner off our torque arm.

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    Senior Member kingls1's Avatar
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    Quote Originally Posted by pajeff02 View Post
    I ground the front corner off our torque arm.
    That maybe all it needs the bottom has no issues top is hitting.
    Scott the guys at UMI told me to take my measurements from the driveshaft just in front of the rear and on the rear it self and add those two numbers together and adjust until I get -2 degrees. I bought a digital guage to help to be exact this time

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    Spaz is My Mentor SMWS6TA's Avatar
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    This video is about the best job of explaining how and why you set up driveshaft and pinon angles.


    pajeff02 likes this.

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