differential clunk
#1
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Car: 85 camaro z28
Engine: 305 TPI
Transmission: T56 6 speed
Axle/Gears: 3.27 borg warner 9 bolt
differential clunk
i installed a richmond posi- powertrax this summer and i noticed it makes a clunk when it engages out of the posi. sometimes it seems like the posi has a hard time dissengaging from one another and it makes a loud clunk when it disengages. any ideas? is this normal? or should a new kind of differential fluid be put in?
#2
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Car: 1986 Z28
Engine: 305ci
Transmission: 700R4
Re: differential clunk
Originally posted by n8sz28
i installed a richmond posi- powertrax this summer and i noticed it makes a clunk when it engages out of the posi. sometimes it seems like the posi has a hard time dissengaging from one another and it makes a loud clunk when it disengages. any ideas? is this normal? or should a new kind of differential fluid be put in?
i installed a richmond posi- powertrax this summer and i noticed it makes a clunk when it engages out of the posi. sometimes it seems like the posi has a hard time dissengaging from one another and it makes a loud clunk when it disengages. any ideas? is this normal? or should a new kind of differential fluid be put in?
I wonder if n8sz28 has to much play in the gears. Could the bolts be loose? What concerns me about his and mine is a faulty unit. We both need help.
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Car: 91' Pontiac Firebird
Engine: LT1
Transmission: 4L60E
Not to be Caption Obvious or anything, but you did add Posi additive to your gear lube, right? Just checking. I've found that the GM stuff works best, and I usually add 1 or 2 bottles of it to my diff(depending on which rear). Often, even with synthetic fluid that says it doesnt need additive, a bottle of additive helps.
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Car: 1992 Firebird
Engine: 305 TBI
Transmission: T-5 w/ Hurst Shifter
if it's the powertrax locking differential, it doesn't need posi fluid, the manual says to use regular gear oil. mine used to make a clunking noise when i suddenly accelerated or let off the gas quickly. i believe this is due to something like 15-30* of free play in the locker, it talks about it right in the manual. if it seems excessive, i would suggest pulling the cover from the rear and checking it out. it turns out i broke one of the springs in it and that was contributing to strong clunks and a loud popping noise when i turned.
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