I have an 08 Ram 1500 4x4 Quad Cab Hemi..how do I know if I have a limited slip differential?? Im about to change gear oil..thanks

 

There are several ways to do this.

1) sticker in glove box states LSD or not.

2) sticker on top of rear axle does the same.

3) VIN number when decoded gives build information when submitted to Chrysler.

4) Open up your diff when doing a service, to clean off the old crud and oil. There will be a clutch pack inside the carrier if it's an LSD.

5) The fun way, by romping on the loud pedal and seeing if you leave two streeks of rubber on the floor lol.

Al.

 

Mine only leaves 1.

 

dont even worry about it. Just buy Full Sythetic 75w-140 and pour in. 99% brands out there have friction modifier in it because it's actually needed with synthetic for even reg non LSD gearsets.
I havent had any issue's with straight Mobil 1 75w-140 and I've towed alot and made hairpin corners. Zero chatter. If you experinece any chatter, just add modifer, but honestly dude, wouldnt sweat about it.

ohh, rearend takes just over 2qts (2.2) so you';ll need to buy 3 bottles. I have a complete list of fluid specs in the FAQ section.

 

If she leaveS 1..... She's a peg leg.