Rear end pop when turning

[OutlawTrucker]

Anyone got any idea why the rear diff would be popping when turning? Setup is USA standard gear 4.56/yukon duragrip posi. Changed the diff fluid after break in and added the posi additive. On gravel it leaves a mark like the inner wheel is dragging or something. Had the install done back in June.

 

[Redtruck-VA]

I would put more additive in it and put one wheel off the road and spin it up some.

 

[TRCM]

When my LSDs start popping, it's time for new fluid and fresh additive. I then find a big parking lot, and do a bunch of figure 8's to really work the fluid in and get the varnish off the plates.

I also get the additive @ ford, as it is the same stuff, but you get 2x as much for the same price, at least around here.

 

[Brakelate]

Yup, you need to add another little container of Limited Diff "Friction Modifier".

My Ford F350 would hold and finally release with a 'BANG' like someone hitting the rear axle with a sledge hammer.

Added one little bottle of Modifier fluid from Ford and it was smooth as butter.

 

[OutlawTrucker]

It's got 8-10 oz of it in there now. Fluid wasn't long since changed.

 

[OutlawTrucker]

Found the issue. Rear end has broken teeth in spider gears.

 

[Redtruck-VA]

Found the issue. Rear end has broken teeth in spider gears.

That would certainly make some noise...

 

[Brakelate]

Found the issue. Rear end has broken teeth in spider gears.

Well, then double the amount of Friction Modifier and go out and run it along the interstate at about a hundred for twenty minutes or so. It should smooth right out.

 

[OutlawTrucker]

Prolly gonna put a Detroit trutrac in


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