Pinion Angle at +2
Thread Starter
TECH Apprentice
Joined: Jun 2008
Posts: 321
Likes: 1
From: Schertz, Tx
Pinion Angle at +2 So, after a vibration driving me crazy and learning what sounds like my pinion bearing going out, I want to confirm that my DS is in a bind. I bought an Angle finder and both angles are on the left of the 0. My DS-PA= +2 TPA on my set up.
DD and track time with a +2 TPA is not good correct?
DD and track time with a +2 TPA is not good correct?
Thread Starter
TECH Apprentice
Joined: Jun 2008
Posts: 321
Likes: 1
From: Schertz, Tx
I know buds, I told the performance shop that the second time... They got it wrong because it was a Spohn TQ Arm on try #1. Then took it back. So I measured it myself to check if it was -2. Well TPA is at +2 after 6 months of driving.
Just wanted to confirm that a +2 TPA will have bad effects like vibrations and the Pinion bearing.
Just wanted to confirm that a +2 TPA will have bad effects like vibrations and the Pinion bearing.
The +2 pinion angle shouldn't affect your pinion bearing but it may cause vibrations. The general pinion angle rule is that the more flex your rear suspension has, the more negative angle you want. For example, a stock rear suspension is obviously going to flex so a safe number would be -3 or -2. If everything is solid....solid lowers, solid tq arm and solid panhard, you can safely go to -.5. If you have poly bushings, -1.5 to -1 is a decent number. Hope this makes sense.
Thread Starter
TECH Apprentice
Joined: Jun 2008
Posts: 321
Likes: 1
From: Schertz, Tx
The +2 pinion angle shouldn't affect your pinion bearing but it may cause vibrations. The general pinion angle rule is that the more flex your rear suspension has, the more negative angle you want. For example, a stock rear suspension is obviously going to flex so a safe number would be -3 or -2. If everything is solid....solid lowers, solid tq arm and solid panhard, you can safely go to -.5. If you have poly bushings, -1.5 to -1 is a decent number. Hope this makes sense.
