Recently replaced worn steering and suspension components on our truck with 480k plus miles. I was hoping that by replacing many of these worn suspension components, all of the irks and quirks (VIBRATIONS) would go away. The rack and pinion was shot, the front upper and lower control arm bushings and ball joints were shot, the front wheel bearings were lose, the center carrier bearing was worn, drive shaft u-joints were worn, left rear axle and bearings worn, differential overhaul conducted at a shop (carrier bearings replaced, backlash set, pinion preload set). The differential/driveshaft repair shop also stated that the driveshaft had no balancing issues. They checked it.
I had replaced the pinion seal and crush sleeve (washer) myself a few years back but did not use the correct procedure/method to set the correct preload on the nut, instead, I took a short cut and installed the pinion nut back on by using the "thread count method" (incorrect). This would come to bite me later. Replacing a leaky pinion seal has its proper steps (procedure) when tightening the pinion nut back on. Sole reason for premature wear on my differential and reason for the differential fluid leaks.
All this work and I STILL HAVE VIBRATION upon acceleration from a stop, and VIBRATION when driving around town (when accelerating) and driving at freeway speeds. When the truck is moving on a road or freeway, accelerating or not, as the trucks suspension travels up and down, there is road noise and vibrations that are very pronounced and felt at our feet but not felt at the steering wheel.
Took the truck to a transmission shop yesterday and the shop owner ruled out a failing torque converter. The shop owner asked if I had checked the drive shaft and I told him that the drive shaft was checked at another shop. He also asked if the truck was lowered and I told him no but did tell him that my front springs were original (all shocks replaced) and rear leaf springs were original. He was thinking that if the truck was lowered that the angle on the driveshaft might be causing the road feel vibrations that he experienced and I was complaining about.
Going to take it back to the differential/driveshaft shop today to have them look at the driveshaft again (slip yoke, etc).
Any advice is greatly appreciated.
I had replaced the pinion seal and crush sleeve (washer) myself a few years back but did not use the correct procedure/method to set the correct preload on the nut, instead, I took a short cut and installed the pinion nut back on by using the "thread count method" (incorrect). This would come to bite me later. Replacing a leaky pinion seal has its proper steps (procedure) when tightening the pinion nut back on. Sole reason for premature wear on my differential and reason for the differential fluid leaks.
All this work and I STILL HAVE VIBRATION upon acceleration from a stop, and VIBRATION when driving around town (when accelerating) and driving at freeway speeds. When the truck is moving on a road or freeway, accelerating or not, as the trucks suspension travels up and down, there is road noise and vibrations that are very pronounced and felt at our feet but not felt at the steering wheel.
Took the truck to a transmission shop yesterday and the shop owner ruled out a failing torque converter. The shop owner asked if I had checked the drive shaft and I told him that the drive shaft was checked at another shop. He also asked if the truck was lowered and I told him no but did tell him that my front springs were original (all shocks replaced) and rear leaf springs were original. He was thinking that if the truck was lowered that the angle on the driveshaft might be causing the road feel vibrations that he experienced and I was complaining about.
Going to take it back to the differential/driveshaft shop today to have them look at the driveshaft again (slip yoke, etc).
Any advice is greatly appreciated.
