blue5.0

I have a slight vibration at low mph's 15-25ish after installing their lowering shackles and shocks. Could this because I've changed the driveline angle? I wasn't able to lower the front b/c Belltech did not send me the spring perch(s) for the struts. With that said, when I lower the front 2", I should have the same angle as stock and will hopefully alleviate the problem.. any help is appreciated.

Tothemax

I would say yes.

JJM

I'm gonna bet that lowering the front won't fix the issue as it won't affect driveshaft angle. You're probably gonna need to shim your rear axle. You want transmission output to match axle pinion angle.

2016BoostedGreyGoose

iTrader: (1)

Did you remove the transmission mount and mount drive shaft up closer to frame? I know this is required on the 2015+ to eliminate vibration/shudder, not sure 100% about prior years...just throwing that out there.

blue5.0

I'm no expert in this subject matter but if I lower the front 2" won't that in turn lower front and create the same angle as it had before.

blue5.0

No this was not in the instructions. I'll look into that though.

JJM

I'm no expert either but I'm seeing the pivot point as the rear wheels.

The vertical distance in the rear (which is what changed your driveshaft angle) has changed, lowering the front doesn't give you height back in the rear.

LethalRyanR

You just need to set your pinion angle man. No big deal but if you've never done it, it may be easier to just pay someone. You'll need an angle finder to do it as well. Here's an how-to

http://www.wolferacecraft.com/pinionangle.aspx

There are quite a few how-to's out there, this was just the first one I came across and from a trusted source.
RyanR

blue5.0

Good deal, thanks for the link.

Cammy

Blue, what did you end up doing to resolve your issue? Shims? I'm having the same problem and can't figure out if I need to shim it and at what degree or move my carrier bearing upwards.