Logansportage - thanks! That bit of info really takes a load off my mind. I'll be sure to post the details of the fit of the OBX diffs once I start turning bolts.

Everet - I have a dial indicator & magnetic base already. I don't have a 7-8" micrometer yet (for measuring the preload - based on this Miata Diff R&R). And I still have to pick up some basic tools (jack stands, jack, impact wrench, etc). I have the carrier bearings - got them from RockAuto for half the price at AutoZone. I'm just waiting for the circlips to arrive at the Mazda dealer later in the week. I was hoping to find a local mechanic to do the install. But it seems none are interested in doing the job unless they can bleed my wallet for $1500+. If you know someone in the Sacramento-area that will do the job for the fair-cost of labor, let me know.

1997 Sportage 4x4, auto-trans, Warn manual hubs, 4" UPYOURKIA front lift, TJ 106AA rear springs, 2-5/8" body lift, 31x10.50 treads, SmittyBilt SRC front and XRC rear bumper, swing-out tire mount, OBX LSD front diff, Track Finder rear locker, 5.38 R&Ps and... really crappy gas mileage! <img src="/forums/images/graemlins/shiner.gif" alt="" />