Outer Limits 4x4 Board

When driving around i'm getting bad slap every decel/acceleration change (changing gears etc).

I've checked uni's, t-case is sweet. It's definetly in the rear diff.

When turning rear drive shaft i can feel the ring/pinion backlash, its perfect. nice & tight. but i can keep turning the drive shaft after R&P backlash is taken up, about another 1/4 of a turn further, before i get pressure applied to the axles.

Has anyone had issues with their auto-lockers (lockright) loosening up/generating a slap in the diff? Or does anyone have any other ideas?

It wasn't there before my last wheeling trip, but It wasn't until i was leaving, when i unlocked the hubs & all drive was to rear wheels, that the slop was pronounced.

Yeah, they do that. mine has about 1/8th turn of the tail shaft.
When you did your install, did you shim the side gears to spec?
Mine has been like that for ages, too lazy to fix it these days.

Layto....

Mine does exactly the same mate.

Thinking about moving it up front and mini-spooling the rear.

layto i cant remember mate.
I will check with my mate who i did the install with, he had the same thing happen to his.
I might shim it up more? tighten it up? its seriously borderline on driveable the slap is that bad in 2wd, it drives me nuts...

mine does that every now and then.. thought it was normal.
i found that 2nd is a bit harder to change into now when flooring it on road..