Vibration help!
Thread Starter
Joined: Apr 2005
Posts: 4,085
Likes: 1
From: N. Falmouth MA
Vibration help! I've had this VIB problem since I got my wheels. It used to start @ 50mph... but since I've been working on it the vib isn't AS bad now. It just does it @ 60-70mph now. BAD @ 65mph. (It did this before and after my tranny + clutch swap...FYI)
I have Eibach Prokit, Bilstien Re-valved shox, ADJ PHB, ADJ TA w/ poly mount, Hotchkis LCA's, BMR LCA RLB's, Energy Susp Trans mount,
I had my wheels re-balanced three times. So that can't be the issue. I re-adjusted my PHB, the VIB stopped for a little while. THen it came back. I knocked my LCA's down to the bottom hole on the LCA RLB's. THe Vib Stopped.... then it came back..
Is the DS Pinion angle effected by Lowering springs? -I wouldn't think so.= TA... (set to -2*) I noticed that the rear was at a bit more of an angle w/ the LCA's in the stock hole. I am going to try to re-adjust or check my Pinion angle again this week. I can feel it 'lugging' in 3rd at low RPM's. 1500rpm at part throttle, doing about 30mph.
U-Joints? Bent DS?
I have Eibach Prokit, Bilstien Re-valved shox, ADJ PHB, ADJ TA w/ poly mount, Hotchkis LCA's, BMR LCA RLB's, Energy Susp Trans mount,
I had my wheels re-balanced three times. So that can't be the issue. I re-adjusted my PHB, the VIB stopped for a little while. THen it came back. I knocked my LCA's down to the bottom hole on the LCA RLB's. THe Vib Stopped.... then it came back..
Is the DS Pinion angle effected by Lowering springs? -I wouldn't think so.= TA... (set to -2*) I noticed that the rear was at a bit more of an angle w/ the LCA's in the stock hole. I am going to try to re-adjust or check my Pinion angle again this week. I can feel it 'lugging' in 3rd at low RPM's. 1500rpm at part throttle, doing about 30mph.
U-Joints? Bent DS?
I do believe lowering a car does change the pinon angle since you no longer have as much of a "rake" to the vehicle.
That would be my first bet. I know my pinon angle was way off after I lowered my car, so I had to get some LCA brackets to get correct geometry, and adjust the TQ Arm to get the proper angle.
That would be my first bet. I know my pinon angle was way off after I lowered my car, so I had to get some LCA brackets to get correct geometry, and adjust the TQ Arm to get the proper angle.
Thread Starter
Joined: Apr 2005
Posts: 4,085
Likes: 1
From: N. Falmouth MA
Ahh... Ok, kewl.
Thanx bud. I work 2nd shift so I MAY be able to go in early this week to do some DS maintenance. I HOPE. This VIB is really getting old AND frusterating. I just hope I don't wear something out. It doesn't do it over 70mph. I've taken a couple LONG cruises w/ it. (360 mi) I should really do this ASAP if it's a DS pinion angle problem.
Thanx bud. I work 2nd shift so I MAY be able to go in early this week to do some DS maintenance. I HOPE. This VIB is really getting old AND frusterating. I just hope I don't wear something out. It doesn't do it over 70mph. I've taken a couple LONG cruises w/ it. (360 mi) I should really do this ASAP if it's a DS pinion angle problem.
