so my good old 92 5 speed with 173,000 on it is stock besides some pump tweaking. it bucks or hops when starting out in 2 and in reverse empty or loaded. shifts fine otherwise. u-joints are fine and tranny does not slip and always overfilled by a quart. anyone had this? or any ideas? could bad shocks cause that? thanks!!!

 

Bucks like your trying to take off with too little RPM? Or bucks like the suspension is acting up?

Could it be the clutch on its way out? How old is it?

If it bucks like your starting in too high a gear or with to little RPM, Have you checked your idle RPM? I know we upped a buddies to 850-900 (from the factory 750) and it helps with the starts alot. Maybe yours idle RPM has slowed down some.

Also maybe something is creating extra drag that the truck has to overcome to start... Got a brake dragging?

Just some thoughts to get you started from my very little 5-speed experience, keep us updated.

 

might be original clutch as i got the truck with 129,000 on it. i could be lugging it as i'm not one for giving it much throttle when letting the clutch out. my rpms are at 850 at idle and not brake dragging. could be driver error. i would think if the clutch was bad it would be slipping. but just when i think i know something i find out i know nothing!!!

 

The clutch might be grabbing, I'm sure someone with more 5-Speed knowledge will be in to give you more then my shots in the dark.

 

mine did that too.i think its probley du to slop in the tranny or end play.

 

My truck does the same thing and it has 40k on an oem clutch. I read that a bad carrier bearing or motor mounts will cause these symptoms.

 

mine hopped really bad after i put a new clutch in (and resurfaced the flywheel), 6000 miles later it still does it a little. I figered it was still breaking in but you guys really think somethin else could be causin it?

 

my dads does the same thing, i think it may be the gearing are you running 4:10's?

 

Yep got the 4:10s

 

gearing has nothing to do with that. sounds to me like you might got a hard spot on the flywheel it may need to get resurfaced