K&W 402508 Trans-X Posi Trac Limited Slip Gear Oil Additive - 7 Fl Oz

Stopped my rearend chatter.

works well, no chatter .

worked good! Half a bottle for a 2020 scat pack differential No chatters with sharp / wide turns clutches grab normal I’ll buy it again . Not much else to say.

I don’t like the way the bottle is shaped, I had to use some tools I had around the house to get the tube in the rear dif hole 2011 camaro ss rs The sound from the rear differential is slowly going away after just 20 minutes I will update if I real care but so far so good I hope it works like the comments Next day the chatter has went down a lot !!! I would say this work just it completely hasn’t went away so now I think I have some other type of damage in my dif but yeah I’m happy

good product

A tube of this and fresh Mobil 1 diff fluid fixed my horrendous LSD chatter problem. Based on internet posts was originally looking for Ford friction modifier but have always had good luck with CRC products. Did not disappoint. Drives like a new car, doesnt fight me in turns anymore yet still locks up tight when really hit it. Replaced Royal Purple synthetic that said it had the modifier, but guess it wasnt enough.

Makes slippery things slipperier

Got rid of the stutter in the rear end of my Expedition when going around corners. I added the entire tube when I installed new bearings and seals in my axle.

As advertised

It is in the axle and the gears are turning. No noises, thumping, or cracking, so it must be working.