any rear diff experts about

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bart2181

New Member
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hiya,correct me if i,m wrong but with both wheels raised and me turning the rear diff flange are both wheels supposed to turn?mine aren,t:confused:i have the rear prop out at the moment trying to track down a driveline clunk and the car seems to pull so much better without the prop in.do you think maybe theres a problem with the rear axle?come on lads first sensible answer and i,ll buy him a drink.cheers craig
 
if both wheels have no load on them then yes they should turn. Could be a binding brake or bad wheel bearing causing the wheel with least resistance to turn only check each wheel in turn for a resistance to turn. If there is equal resistance then you need to 'feel' for roughness while you turn the diff from the flange then each wheel hard to explain
 
What Jai said. I'd add that if it's an open diff then you can try turning one wheel and the other should, if anything, rotate the opposite way. Might help pin-point any binding. Take the half shafts out and feel what the prop input flange rotates like. It's hard to tell when a tooth is chipped (I lost two teeth on the crown wheel) unless it's in a bad way, without running the vehicle with the wheels off the ground. Mine only showed up under load, driving round made a hell of a noise, turning and working thw wheels and diff made no noise and you couldn't feel any roughness!!!
 
cheers lads.i,m gonna take halfshafts out tommorow c how they look,a-frame balljoints just been done,theres no noise with wheels in the air but like paul d had,under load rocking car back and forth theres clunky noise coming from around the diff flange area.i,m under the impression that the prop turns the diff,the diff turns the halfshafts and the halfshafts turns the wheels,so if diff turns without wheels turning something must be foooked:eek:
 
Recently had a problem with my rear diff. Thought the pinion bearings had gone, but once I got it out, I found that the coupling nut was loose.
If you're pulling the halfshafts and you've got the propshaft off, it's not much more work to get the diff out and have a look at the gears etc. Just don't drop it on your head. Its bloody heavy.
 
Yes. As diver says, you've already got the prop off, if you take the halfshafts out then all that's needed is to drop the remaining diff oil, remove the nuts round the diff and drop it out ... but it IS bloody heavy, use a jack and have another person there, ideally. When you've done it a couple of times you develop a knack but for the first time just go steady and be careful.
 
cheers for replys lads tommorow im getting the spanners out:eek:told the misses to be prepaired to walk to work should incase it all goes tits up:).i,m fairly sure that my CLUNK is self inflicted after fitting some wheel adapters for larger bling wheels and torqueing the adapter nuts up with a lump hammer:doh:maybe i,ve broken a few splines off or something alike.still we live and learn.cheers craig
 
Could be splines on the primary gearbox shaft! What year is it?
This was solved after 1996 or summet like with a cross drilled cog in the transfer box that lubricated the splines and stopped em wearing (as much)
 
its a 98 mate.but even if this cog was worn that would,nt explain why when the rear wheels off the ground,prop off,don,t turn when the flange is turned.unless ive missed something.
 
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