SS Rear Differential Swap

[Aries]

I strengthening my search for a SS rear differential so let my know if anyone comes across one. I'm willing to travel east of the Miss-sip with in reason. I'm really not into buying sight unseen but sometimes that's not an option. Right now I'm in Bridgeport WV on a work contract, I travel home to lower Delaware about once a month, so taking a detour would not be much of an issue.

LarryK's post got me thinking. I've been wanting to pull the 8.6 out and do a complete rebuild but I've also been thinking of an SS swap. If I'm going to spend the time and money I may-as-well go with SS

[ErikSS]

Just to clarify, you're looking to buy a TBSS 9.5" 14 bolt rear axle, right? Not just the differential. Are you aware of the drive shaft and U joint changes that are required?

[larryk]

No driveshaft change is needed.....but you MUST convert the U-joint to a "conversion" one. There is a NAPA number floating around the forums if you search for it.... Otherwise, its a complete plug and play. Except for geting the PCM reprogrammed for the different gear ratio, on a 2004 4.2 is a NIGHTMARE

[Aries]

Just to clarify, you're looking to buy a TBSS 9.5" 14 bolt rear axle, right?

Right

[TBYODA]

No driveshaft change is needed.....but you MUST convert the U-joint to a "conversion" one. There is a NAPA number floating around the forums if you search for it.... Otherwise, its a complete plug and play. Except for geting the PCM reprogrammed for the different gear ratio, on a 2004 4.2 is a NIGHTMARE

Beside the convert U-joint most have found you have to shorten the drive shaft between 1-1.5" on a SWB.