anyone find what's causing those trucks to vibrate ?
09-29-2016, 10:29 AM
#51
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All the signs point to pinion angle to me.... Why hasn't anyone shaved a little off the rear of the axle brackets to adjust the angle? mine seems to do it a little the first minute or so on the highway, then smooths out. I'm lowered 4/6". maybe raising the transmission mount a little might help as well? I might look into it in the future, but it's not that bad to me. does the driveshaft get pushed in too far after lowering? I wish I measured my angles before lowering the truck, but hindsight, ya know.
09-29-2016, 10:47 AM
#52
All the signs point to pinion angle to me.... Why hasn't anyone shaved a little off the rear of the axle brackets to adjust the angle? mine seems to do it a little the first minute or so on the highway, then smooths out. I'm lowered 4/6". maybe raising the transmission mount a little might help as well? I might look into it in the future, but it's not that bad to me. does the driveshaft get pushed in too far after lowering? I wish I measured my angles before lowering the truck, but hindsight, ya know.
Good flip kits will move the axle to the rear of the truck after flipping. I will say once lowered the tranny doesn't clunk in/out of gears anymore. So thats a plus, but I still have a vibration on decel under 25mph.
Which normally on decel vibration the pinion angle needs to go up, the trans and pinion are within 1.5° which should be good or so I thought. Might try a trans spacer and see what happens.
09-29-2016, 11:07 AM
#53
Good flip kits will move the axle to the rear of the truck after flipping. I will say once lowered the tranny doesn't clunk in/out of gears anymore. So thats a plus, but I still have a vibration on decel under 25mph.
Which normally on decel vibration the pinion angle needs to go up, the trans and pinion are within 1.5° which should be good or so I thought. Might try a trans spacer and see what happens.
Which normally on decel vibration the pinion angle needs to go up, the trans and pinion are within 1.5° which should be good or so I thought. Might try a trans spacer and see what happens.
10-02-2016, 04:08 PM
#57
Booked my bucket in for Tuesday about my vibration under load and my stupid 8 speed. I doubt the tranny will get any better as the service guy and I talked for a bit and he admitted even they are getting frustrated with GM as they don't actually fix this trans and just keep pumping them out. Well hopefully we get a resolution to the vibration anyway.
10-02-2016, 10:27 PM
#59
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Booked my bucket in for Tuesday about my vibration under load and my stupid 8 speed. I doubt the tranny will get any better as the service guy and I talked for a bit and he admitted even they are getting frustrated with GM as they don't actually fix this trans and just keep pumping them out. Well hopefully we get a resolution to the vibration anyway.
Weird clunks and hard downshifts, lock up cycling in and out.
Still would rather have a six speed though.
10-02-2016, 11:12 PM
#60
Gm has some sort of service update they put out on the 8 speeds in the camaros behind the 3.6 about the turbine shaft breaking in it and before any of them got done the resended it, something about a reflash to fix it and the reflash is apparently throwing all sorts of other codes in the process.... Reitterates why i dont want a sixth gen camaro.... Shouldve left well enough the hell alone...... Wouldnt buy a 2014 and up silverado either unless it is a 2500 with the l96 in it!! Although the realtree edition may just do me in on that!!