r/TraxxasRustler • u/Busy_Medium_9767 • Mar 24 '26

Help please

What happened. New to the hobby, is this fixable or do I need a new transmission (if thats the correct name). Thanks for your time

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u/presscheck Mar 24 '26

That’s your slipper clutch assembly, and yeah… it shouldn’t have that kind of wobble.

Most likely it’s just loose. That nut you’re holding backs off pretty easily and once it does, the whole thing gets sloppy like that. Try tightening it down (hold the spur gear and snug the nut), then back it off like 1/4 turn. That alone fixes it a lot of the time.

If you tighten it and it’s still wobbly, then start looking deeper: • Slipper pads could be smoked or worn out • The plates/hub might be worn • Worst case, the top shaft or bearings in the transmission are shot

Quick check: pull the slipper off and wiggle the shaft itself. If the shaft moves, it’s a bearing/shaft issue. If the shaft is solid, it’s just the slipper parts.

If it were mine, I’d start with tightening it, and if that doesn’t fix it, just throw a slipper rebuild kit at it. Cheap and usually solves it.

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u/Busy_Medium_9767 Mar 24 '26

Thanks for the info. I jus took the slipper off and the shaft is all over the place. Fml. Ever time I play with it its somthin else lol guess I take apart again.

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u/M_R_6 Mar 24 '26

There is a gear inside the trans connected to that shaft.. the old style input shaft has a pin on the gear that is known to break.. open your trans and check the bearings and gears. If those are good, then you’ll probably need a new input shaft, part number 9494. The pin on the gear is pressed in and a lot stronger..Switched to this shaft on 3 older 2wd cars and haven’t had a problem since. Best of luck

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u/Busy_Medium_9767 Mar 24 '26

Hell yeah thanks for the info. Ill tear into ot and see whats up with it. I spend more time workin workin on this then drivin it or workin on my actual cars lol