if it is AWD (all-wheel drive) it has limited slip diff
^^^
Above answer is bad information:
Most Subarus do not have a rear limited slip differential (LSD), but some do. Unless you have an STi or one of the rare older late 80s early 90s sporty Subarus, if you do have any type of limited slip differential it will be a 'viscous' type (VLSD).
Jack up the rear of the car and spin one wheel while you watch how the other wheel spins. A Subaru with an LSD should have both rear wheels spinning in the same direction, but if it has the more common open-differential then one tire will spin in the opposite direction of the other.
A limited slip diff, yes
There will be a small metal tag on the rear diff. It will tell you your gear ratio, and will have an "LS" after that number if you have a limited slip.
REAR - 2.4L 96-99 DIFF CAPCTY LTRS 2.75 REAREXC LIMITED SLIP DIFF -2.7L,3.4L 96-99 DIFF CAPCTY LTRS 2.95 REARw/LIMITED SLIP DIFF -2.7L,3.4L 96-99 DIFF CAPCTY LTRS 2.95 REAR - 2.7L, 3.4L w/LOCKING DIFF 96-98 DIFF CAPCTY LTRS 2.00
buick roadmaster 1992 rear axle does it have limited slip diff
Only if it is a "limited slip" differential.
limited slip diff uses 75w-140 synthetic with 4 oz. friction modifier without slip diff. uses 75w-140 synthetic
Whether or not it is limited slip can be determined by checking for a tag or stamp on the differential. Positraction is just GM's name for limited slip. The tag will have an L on it, next to the gear numbers if it is limited slip. There are several ways to tell including, pop the diff cover just look at the insides of the carrier and if you see the little clutches its posi if you dont its not jack the rear end up, put it on stands, trans in neutral-turn one wheel by hand, if the opposite one turns the same direction it is limited-slip, if the opposite direction it is not
Nope, you have a limited slip diff. The clutches will probably go at 100,000 miles.
Not standard.
Three ways:Call a Dodge dealer with the VIN # and askThere is a tag usually on one of the rear diff cover bolts that says what it is, ratio and what oil additive to use.Jack up the back wheels and try turning one of the wheels. With the trans in park or for a manual in gear, in the limited slip the rear wheel will not turn by hand. The open differential will.Except my truck, It has so many miles on that the guts inside the limited slip are so worn that it acts like an open diff for this test
No, because AWD cars have a center differential or viscous clutch. Meaning that the front and rear driveshafts are not solidly connected to each other and if one is disconnected it will just spin freely and the car won't move forward well if at all. PLEASE BE ADVISED THAT THE SUBARU WILL DRIVE FROM ETHER END IF DRIVE SHAFTS ARE REMOVED FROM ONE DIFF BACK OR FRONT. The Subaru does not use a centre diff so drives direct to the front but will transfer drive to the rear if the front "slips" so if you remove a shaft from the front it = "slip" so will drive to the back.Removing a shaft from the rear will not interfere with drive to the front. So be aware unless there is a shaft off both diffs &, in the case of models with limited slip rear diff, both shafts or the center shaft, it will still run over you or your mate if you put it in gear. Life is full of surprises so lets try to keep them pleasant ones.
Most are open, limited slip was an option.