Spriggs53
New member
I’ve had my truck (02 SR5 2wd auto trans, 148,xxx miles) for nearly a year and I’ve done about all the maintenance, preventative maintenance and modifying one could do in a year.
That being said, I’ve got a vibration. It started about 2-3 months ago after a 2” lift. Originally diagnosed it as bad u-joints, I bought a whole new driveshaft from Camelback, put in the new driveshaft and the problem persisted, and if its possible, it got worse. I took the Camelback shaft out and called it faulty so I sent it back. I put the old DS in with new cheap O’Reilly UJ’s. I know I know, Toyota and OEM, but I did it as a test to see if its actually the DS at fault. Along with that I put adjustable rear upper control arms to adjust the pinion angle to help my case some (pinion angle is now at 1.60° instead of 5.65°) along with a new trans mount because the old one was looking retired. I did that yesterday (8/7/21) and the problem persists, and again, if its possible, IT GOT A LOT WORSE.
Now, onto the actual symptoms: it started out as a slight high frequency vibration at launch up to about 30mph, and at highway speeds a grinding noise along with a high frequency (much harsher) vibration on the decel with a little bit of gas applied that you could feel thru the seat, floor board and gas pedal. As time went on the vibrations were happening more frequently and under less stress. The first time I replaced the driveshaft with a new OEM DS the symptoms got worse. At lower speeds: it turned into a harsher, a little more shaky vibration. At higher speeds: the higher frequency vibration was starting to happen every time I let my foot off the gas and felt a lot harsher, especially going down hill, not only that a shaking started to occur under load. As time went on those symptoms persisted. Driveshaft, right? Old DS with new UJ’s: only one vibration went away; the shaking under load. Not gonna lie, it rides pretty smooth… minus the much MUCH harsher higher frequency vibration. Remember how it was only doing it when I let my foot off the gas pedal? Now its happening continuously. The only thing that occurs under the decel is that grinding noise, but now its louder and happens just about every time I touch the gas pedal. The shaking at lower speeds kinda went away, but now theres that constant, non-stop high frequency vibration that replaced it. To top it all off my gas mileage dropped about 2mpg. I can feel something like some resistance; It doesn’t coast quite the same. One last thing: while cruising at a set speed there is this deep, I mean DEEP, like someone dropped the bass kinda deep vibration sound in the cabin that goes away if I let off the gas pedal and if I give the car more gas to accel.
Everything I’ve done has seemed to make it slightly worse every time. I’ve done the rear axle seals job, the valve cover job, the timing belt job, the ball joints job, the rack and pinion bushings job, the tundra brake upgrade job, nearly everything that could confront any sort of vibration. I’ve gotten an alignment and balanced the tires twice. The only thing I haven’t confronted is the front two wheel bearings and the differential. The only thing I can think of at this point is the differential or the output shaft.
Conclusion of rant; any ideas?
That being said, I’ve got a vibration. It started about 2-3 months ago after a 2” lift. Originally diagnosed it as bad u-joints, I bought a whole new driveshaft from Camelback, put in the new driveshaft and the problem persisted, and if its possible, it got worse. I took the Camelback shaft out and called it faulty so I sent it back. I put the old DS in with new cheap O’Reilly UJ’s. I know I know, Toyota and OEM, but I did it as a test to see if its actually the DS at fault. Along with that I put adjustable rear upper control arms to adjust the pinion angle to help my case some (pinion angle is now at 1.60° instead of 5.65°) along with a new trans mount because the old one was looking retired. I did that yesterday (8/7/21) and the problem persists, and again, if its possible, IT GOT A LOT WORSE.
Now, onto the actual symptoms: it started out as a slight high frequency vibration at launch up to about 30mph, and at highway speeds a grinding noise along with a high frequency (much harsher) vibration on the decel with a little bit of gas applied that you could feel thru the seat, floor board and gas pedal. As time went on the vibrations were happening more frequently and under less stress. The first time I replaced the driveshaft with a new OEM DS the symptoms got worse. At lower speeds: it turned into a harsher, a little more shaky vibration. At higher speeds: the higher frequency vibration was starting to happen every time I let my foot off the gas and felt a lot harsher, especially going down hill, not only that a shaking started to occur under load. As time went on those symptoms persisted. Driveshaft, right? Old DS with new UJ’s: only one vibration went away; the shaking under load. Not gonna lie, it rides pretty smooth… minus the much MUCH harsher higher frequency vibration. Remember how it was only doing it when I let my foot off the gas pedal? Now its happening continuously. The only thing that occurs under the decel is that grinding noise, but now its louder and happens just about every time I touch the gas pedal. The shaking at lower speeds kinda went away, but now theres that constant, non-stop high frequency vibration that replaced it. To top it all off my gas mileage dropped about 2mpg. I can feel something like some resistance; It doesn’t coast quite the same. One last thing: while cruising at a set speed there is this deep, I mean DEEP, like someone dropped the bass kinda deep vibration sound in the cabin that goes away if I let off the gas pedal and if I give the car more gas to accel.
Everything I’ve done has seemed to make it slightly worse every time. I’ve done the rear axle seals job, the valve cover job, the timing belt job, the ball joints job, the rack and pinion bushings job, the tundra brake upgrade job, nearly everything that could confront any sort of vibration. I’ve gotten an alignment and balanced the tires twice. The only thing I haven’t confronted is the front two wheel bearings and the differential. The only thing I can think of at this point is the differential or the output shaft.
Conclusion of rant; any ideas?
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