Mike,
Keep in mind there are several different series ring gear carrier assemblys.This is the section that holds the spiders and axle gears and your ring gear bolts to.If my memory serves me right the series 4 carrier will except the 4:56,4:11 and possibly the 3:73 ring gear.Each series carrier has a different mounting location for the ring gear to bolt to .When the gear ratio gets lower the thickness of the ring gear gets greater which requires the mounting location to change.You might contact Richmond gear they can help you indentify what you have and what will possibly interchange to your carrier. http://www.richmondgear.com/


In the works 2006 GEN III 6.0 /4L80E/ 205 New process,A/C and power brakes .