You don't. If you have access to a shop with a press and a nice assortment of tools, I'd suggest doing the gears yourself. You should be able to get a set of Motorsport gears for ~$100-125 on ebay. A used carrier, solid axle is easier to find usually, ~$75-100 max. MAKE SURE IT'S 28 SPLINE. Maybe a clutch rebuild kit for the traction lock if it has high miles ~$50. Then you need a pinion and carrier shim kit, pinion seal, crush sleeve, friction modifier, and some gear marking compound ~$50. That looks like a little over $300 in parts, if you replace the clutches. Some guy is selling the IRS units with 3.73 TL for like $525 or something. It just depends on if you want to do it yourself. I just installed TL and 3.73s on mine this weekend. It was very time consuming but it was a very good experience. I spent maybe $225 on the whole deal for parts+ a cheap *** dial indicator from Harbor Freight. Oh yeah, crush sleeve is a *****!!!!
RIP '94 Amber Fire Pearl Metallic Thunderbird on Bullitts [email protected]
96 Sport '02 Explorer PI with ported heads, 90MM LMAF, DirtyDog Marauder TC, Lasota tune, Jmod, Magnaflow mid-mount with X, no cats. Urethane drivers motor mount. HIDs!