FS racing hummer

[Smith3272]

Hi can someone help me when I accelerate there is a loud grinding like noise but when u pick up the car then rev it the sound good any help would be nice

 

[spents]

could be anything from a bad bearing to a stripped or partially stripped gear mate,
best bet is start to strip it down, start with the centre drive and check gear mesh then move onto,wheel bearings, dogbones etc checking for slop in bearings and badly worn or broken dogbone pins/drive cups etc, then work yer way inwards to the diffs,
to be fair you could start anywhere and just see where it takes you,
have a pull and a tug around the car first and see if anything obvious is amiss ,

edit; try and post some pics or a vid on here of whats happening, that way someone may be able to spot something,

 

[Smith3272]

ok thanks ill try that i think its the center drive but cant be sure

 

[MonsterAir]

Sounds like something is binding at ride height. So I'd venture to say something around the diff is loose and shifting when the dog bones become level.

 

[Smith3272]

I think I found it now but not sure the rear diff cup was loose thanks for responding

 

[Smith3272]

Thanks both