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CLUNK IN DRIVE TRAIN WHEN SHIFTING

Posted: November 3rd, 2019, 6:12 am
by RFJ
Hi I have a 1930 82b express bed truck ,everything has been rebuilt. I recently start using it daily and now have about 200 miles on truck. my trouble is a loud clunk when disengaging clutch. It sounds like something is hanging up then releasing. Any help would be greatly appreciated.
thanks

Re: CLUNK IN DRIVE TRAIN WHEN SHIFTING

Posted: November 3rd, 2019, 3:41 pm
by KimVanOrder
Throw out bearing and or clutch plate sticking on spline?

Re: CLUNK IN DRIVE TRAIN WHEN SHIFTING

Posted: November 3rd, 2019, 6:00 pm
by vonheine
AA-4811 output gear loose in the pocket of the short drive shaft? The universal joint whipping and banging against its housing?

Re: CLUNK IN DRIVE TRAIN WHEN SHIFTING

Posted: November 4th, 2019, 2:28 pm
by RFJ
Thanks for the ideas need too dig into this a little deeper.

Re: CLUNK IN DRIVE TRAIN WHEN SHIFTING

Posted: November 4th, 2019, 3:13 pm
by KimVanOrder
Sure your not hallucinating?? Taking your meds regularly? :lol:

Re: CLUNK IN DRIVE TRAIN WHEN SHIFTING

Posted: November 7th, 2019, 4:33 am
by RFJ
My first thought was clutch sticking, but it will make the same clunk after slowing down when you start to accelerate. Seems more like end play .

Re: CLUNK IN DRIVE TRAIN WHEN SHIFTING

Posted: November 7th, 2019, 9:55 am
by vonheine
I agree. The sound is probably related to backlash. When the torque is gone it’s quiet , when the torque is back it clunks when the backlash is taken up