slight vibration after V/c spring swap
#1
10-20-2018, 12:39 AM
slight vibration after V/c spring swap
I swapped my springs for v front and c rear, I gained about 2 inches or so front and rear, I noticed on the fwy over 70 I get a vibration, I did not get it aligned as I wanted the springs to settle first it is slightly off as my steering is not quite on center, is there any way it could be pinion angle? reason being I feel it in my but more than the steering wheel.
#3
10-22-2018, 08:04 AM
Lead Driver
The vibration is caused from the u joints being out of phase which is a result of you changing the output shaft angle while the pinion angle likely stayed the same.
when you lifted the vehicle the output shaft angle when UP a few degrees and the pinion angle was not moved to keep them parallel.
thisos a great illustration of what generates the vibration
when you lifted the vehicle the output shaft angle when UP a few degrees and the pinion angle was not moved to keep them parallel.
thisos a great illustration of what generates the vibration
#4
10-22-2018, 08:07 AM
Lead Driver
You will need to measure the output shaft, pinion and driveshaft angles at static ride height to figure out what shims to use.
this calculator can be of help.
https://spicerparts.com/calculators/...gle-calculator
this calculator can be of help.
https://spicerparts.com/calculators/...gle-calculator
Thread
Thread Starter
Forum
Replies
Last Post
52 panel
1948 - 1956 F1, F100 & Larger F-Series Trucks
25
04-19-2007 10:16 AM
1969FordF250
1967 - 1972 F-100 & Larger F-Series Trucks
7
08-28-2004 09:13 PM