Okay. So what all does one have to buy in order for this to work? I thought the LSD would replace the differential (excluding the ring gear). So, assuming I would have to purchase a new rear differential and rear limited slip, where the heck can I get the differential? Dealership? Would the dealership try to charge an arm and a leg?

'97 Sportage, 4" Lift 1" BL, 31" BAJA CLAWS, Rallye 4000s, Line-Xed Hood, Grille, K&N, 2.25" Exhaust, RS9000s, GPS...

"What is IFS and where can I get some??" (outerlimits4x4.com)