Camaro Junky

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?

bigj2717

iTrader: (15)

The ideal pinion angle you want is -2

96lt1m6

iTrader: (31)

You should be at -2* on up to -3*

Camaro Junky

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.

Outlaw72

iTrader: (1)

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.

Camaro Junky

Makes perfect sense. I have solid everything and see how I went 6 months like this without blowing something up. It does not flex too much with the current +2 TPA. Gonna get set to -1 and see what happens. Thanks Outlaw, you're tha man.

Outlaw72

iTrader: (1)

No problem.....anytime!