does a 5 lug 86 sport have lsd?
 

i think i fried the clutch in my lsd, or does a 86 sport have a lsd at all?

your 86 souldn't have an lsd unless it's had a rear swap before, otherwise no lsd

Did my 2nd Gen RX-7 come with a Limited Slip Differential?
Only the following USA model 2nd gen RX-7s had a LSD from the factory:
86-88 GXL
87-91 T2
88 GTU
89-90 GTUs (however not the 89-90 GTU)
It is also rumored that a few rare 91 coupes with both the A (upgraded the interior trim, added a power sunroof, tilt steering wheel, cruise control, and 4 piston front disc brakes and vented single piston rear brakes) and the B package (leather seating, a CD player, and rear cargo cover) came with a LSD, but you should note that Mazda denies that any FC other than the T2 came with a LSD in 91). You can also tell by looking at the differential as there will be a LSD tag on S4 cars with a LSD.

FAQ

Just crawl under the car in the rear and see if the fill bolt on the rear-end has a LSD fluid tag on it.

Or do it the easy way and read the FAQ :).

It could have been swapped in though, like my car.

Shhhhhhhhhhhhh.

Thread closed. Covered in the FAQ for FC sticky thread found at the top of this section. Please read the FAQ for FC sticky thread before posting. It covers many of the commonly asked questions, such as the one this thread was started with.