« Reply #1 on: September 03, 2014, 07:53:16 AM »
A limited slip is a good thing in the rear and can be there all the time, 2WD and 4WD. In the front it will be noticeable while you drive, similar to the way a Jeep Cherokee has noticeable binding and resistance while in 4WD.
The transfer case itself has a differential to allow the front and rear to slip in relation to each other. The Viscous Coupler is a weak form of limited slip differential. Changing to a NP242 gives you the option either fully open or fully locked differential in AWD or 4WD. Putting one of those in with limited slip in the rear you will basically have at least one front wheel spinning at all times and both rear wheels spinning at all times. That's three wheels workinger where in comparison the stock setup can have a single wheel spinning for quite some time before the front slowly tries to engage. There will be a major traction gain over the stock setup.
The front axle does not have a limited slip carrier that will work without modification, but I've heard of several people making it work by changing the clip somehow.
Logged
Currently Inspected and Insured as of Jan 2013:
-1985 Eagle Station Wagon 258 T5 Stickshift
-1980 Eagle Station Wagon 258 Auto Fuel-injected with GM TBI
Minor Repairs Underway:
-1982 Eagle SX4 258 T5
-1981 Kammback 2.5L Iron Duke T5
Restoration Efforts Near Completion:
-1982 SX4- 401 NV3550
-1983 SX4- 4.5 MPI NSG370 (6 Speed)
Restoration Efforts Underway:
-1985 SW- 4.0 MPI AX15
-1982 SX4- 4.0 AW4
-1981 SX4- SD33T NV4500 (Turbodiesel 5 speed)
Future Rescue Efforts- '85 Maroon SW, '87 Limited SW, '84 Limited SW, '87 4 door Sedan, '81 2 door Sedan, '88 White SW, '77 4 door Hornet, '74 2 door Hornet, '79 Spirit AMX, '81 Kammback.
RIP- Red '81 SX4, '84 4dr Sedan, '84 SW, '81 SW, '80 Spirit, '83 SW, '83 4dr Sedan
Topic: Posi differential. (Read 5962 times)