ring and pinion slop
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ring and pinion slop
Well i noticed kind of a klunk comming from the rear axle when i shift between 1400, and 1700 rpm. so i stopped left the truck out of gear and i can move the drive shaft maybe 3/8 of an inch before it catches. The funny thing is when i take it over 1700 rpm then shift it doesnt do it, i did take the oil fill plug out and it had a little bit of metal but not much. any ideas? thanks
Logistics Pro
Joined: Mar 2002
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From: Wake Forest, NC
The better spec is the amount of ring gear movement, or pinion bearing slop. 3/8ths doesn't sound hateful but I've never really paid any attention to an exact spec on the input side. I would just be guessing at saying that sounds ok. I know my truck drifts a fair amount because of the slack in the axle and I know my specs are fine. Do you have a long wheelbase truck (over 156 inches)?
Freshman User
Joined: Mar 2007
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I agree 3/8" probably is ok. When turning the drive shaft you're seeing the play that exists in the axle side and pinion gears which can seem excessive. To really get an accurate measurement you would have to remove the diff. cover and measure ring and pinion backlash.
Logistics Pro
Joined: Mar 2002
Posts: 3,881
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From: Wake Forest, NC
Yeah, definitely with the larger ring gear I would say that amount of play is ok, even nominal. It would really surprise me if the rear was making the banging noise between shifts and it wasn't the slip yoke or a u-joint.
FTE Leadership Emeritus
Joined: Jul 2002
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From: Long Island USA
3/8" is about right, for a non-LS unit. The spider gears have some slack in them and that's probably most of the "give".
The small amount of metal is OK too, my '01's rear-end had some decent size "crumbs" at about 5K miles and it's still holding together 7 years later
I'd check the u-joints, and the hanger bearing if you have one. Sounds like a bad u-joint.
The small amount of metal is OK too, my '01's rear-end had some decent size "crumbs" at about 5K miles and it's still holding together 7 years later
I'd check the u-joints, and the hanger bearing if you have one. Sounds like a bad u-joint.
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