Ratech Basic Ring & Pinion Installation Kit - 9 Ford, Open 2.891"/ 3.062"/ 2.891" or 3.250" Carrier Bearings, LM 102949, 603049, 501349, 104949 R03J015S This is a square flange

This is a square flange to spread bore adapter

and guideplates

non-adjustable tubular control arms for F-bodies are the ultimate is strength

304 stainless steel weld-in bung

Ratech Basic Ring & Pinion Installation Kit - 9 Ford, Open 2.891"/ 3.062"/ 2.891" or 3.250" Carrier Bearings, LM 102949, 603049, 501349, 104949 R03J015S This is a square flangeBasic Ring and Pinion Installation Kit Ford 9"Fits Ford 9" open axles. Contains Pinion Shims, Crush Sleeve, Pinion Seal, and Cover Gasket. (Image typical Kit may vary from image but will contain appropriate parts) Ratech wants all racers to know about The Myth that "All Shim Packs in the market are the same. They're just washer shaped steel that come in different thickness." WRONG! Ratech manufacture all of their shims in house on their own machinery.