Thread: 130 Backlash

Where are you measuring it? An inch at the perimeter of the handbrake drum is a lot better than an inch at the driveshaft .............

a common place for wear is in the axle splines......

the splines on the axles wear out from constant rubbing if they are dry(not greased)......and cause backlash.......

they also become a weak point when under stress.....such as off-roading.....

Hmmmmm, looks like im hocking my ase or lining up some more over time.
Just come back from the shed and ive measured 80mil of free turn or movement from the hand brake drum (with the break of and out of gear).
I wonder if shims can be used to correct this??

is your rear diff noisy when you drive...?

is there any vibration....?
what made you get under there and check it in the first place....?

Originally Posted by DEFENDERZOOK

a common place for wear is in the axle splines......

the splines on the axles wear out from constant rubbing if they are dry(not greased)......and cause backlash.......

they also become a weak point when under stress.....such as off-roading.....

Checked these and the UJs first all good,greased and tight.

then it sounds like you have too much slack in the diff.....
which should be noisy with that much freeplay.....





(it might be time for an air locker..... )

Originally Posted by DEFENDERZOOK

is your rear diff noisy when you drive...?

is there any vibration....?
what made you get under there and check it in the first place....?

Good question, did a couple hundred kms on gravel last weekend and when back on the tar there was a hum from the rear end,kind of like nobbly tyres with to mutch air. Any way left the wagon in the shed for a couple of days(checked the prop shafts/UJs) took it out on mon all quiet on the tar, drove 40 ks on gravel and the noise came back.

Play in the drive train aft of the handbrake is made up of play in all the joints behind there. Some of these joints don't matter, others really do matter, and some point to "fix this NOW". The places to watch for excess play indicating real problems are the prop shaft itself - should be virtually none, and the drive flanges at the hubs, where some play is acceptable but watch for excess wear (take the hub cap off and observe movement). Most of the play is probably due to wear in the thrust washers in the diff, and is not a problem.

In summary, the problem is not how much play that matters, but where it is.
John