80 4x4 Mystery Clunk in drive train
11-18-2009, 06:51 AM
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80 4x4 Mystery Clunk in drive train SOLVED
80 4x4 Mystery Clunk in drive train SOLVED bad ring and pinion « on: Yesterday at 04:53:01 PM »
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Remove The previous owner put in a new engine (22r) and a new clutch and pressure plate. The tranny is original l-43. When I let out the clutch to quickly I get a clunk but it does not feel like the transmission is hitting the floor or anything like that. It feels like a really bad u joint.. He said it was alway there and he thought it was the tranny mount. When I lay under the truck and watch while someone lets the clutch out quickly I can see no movement of the transmission. The u joints are all tight. If I drive down the road and let up on the throttle ...then back down quickly... it clunks. It feels like a lot of slop somewhere. My tranny guy does not see how it could be in the tranny or t-case. He thinks mabey in the clutch assembly somewhere. We are getting ready to put in and L52 and I want to have every thing I need before hand. I hate to spend 100 bucks on a tranny mount if it is not needed. Any one got any ideas on where this slop could be hiding.
Thanks is advance again
Mark
Last edited by 69800; 12-11-2009 at 05:13 PM. Reason: solved
11-18-2009, 09:27 AM
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My driveline has some play when I lay under the truck I can rotate it back and forth a fair amount.. If you were to put a mark on the rear end the play would be 3/8 to1/2 inch
motor mounts are tight
motor mounts are tight
11-27-2009, 05:59 PM
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my rear diff pinion bearing is going out and causing my truck to clunk when i shift. it did it on a 2wd i had about a year ago you would be amazed how mutch the pinion moves when the bearing dosent keep it in place
12-11-2009, 05:13 PM
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The loose driveline slop was ring and pinion out of tolerence. 20 thousands.. Rebuild third member with old ring and pinion which were in great shape but put in a bearing kit and slop is gone. Mystery clunk is still there and is Axel Wrap...due to lift blocks.... New 5 speed is GREAT
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