front end shakes up and down so does the steering wheel under acceleration from 20 to 35 mph its still there a bit at higher speed it goes away when coasting
i recently changed axle shaft u joints and welded the caps on and new hubs , one hub bolt spun out some breaking the carter pin the hub is ok and hasnt done it sense
the vibe was worse when it was loose
i noticed my front shocks are stiff had to use a hammer to move them to position ther rc 2.2 , 5 months old

 

Did you remove those shocks?
The cotter pin comes out, then you spin off the nut. I need pics of your set-up

 

no i wana buy new shocks but i cant decide what size to get i have jks upper shock mounts 4.5 lift
could it come from the trans or rear drive line the front dl is removed, it still vibrates, motor mounts look good trans mount is new

 

"welded the caps on"
To what, the yoke?
"one hub bolt spun out some breaking the carter pin"
If the hub nut was not properly torqued to 175 ft. lb. on reinstall, the unit bearing is probably trashed.

 

i had a long post and hit the back button
anyway i think its the trans
also can the transfer case cause a slippage also

 

Take it to a shop. It sounds like you're in over your head.

 

i ordered all new shocks and i bought a spare complete front axle
i will update if i ever figure it
i found other threads just like this
and they said the trans can studder at low speed
i wont mind changing the trans the transfer will be harder with the currie kit , its like a hack n tap but its machined by currie it is shorter then a super short sye, theres lots of photos in my other threads of the suspension and everything

 

i wana report back that the vibration was the rear pinoin gear was loose , i was pulling a real stuck truck so we hooked another truck in front of me and it caused my jeep to suck down and there was a hole in the ground from my diff , the soil wasnt real soft either , this probably damaged it