8-3/4 Differential complete center section change

[Heywodja]

This is what I use on my 8 3/4's runs cool and quiet..

Lucas Oil 10042-1 Lucas Heavy-Duty Plus Gear Oil | Summit Racing

 

[TeeScott]

THX. I'll follow-up to confirm exactly teh brand and weight of what was used in my differential. Also, after about 100-150 miles of local driving, my rear differential is practically silent...Or at least as quiet as the OEM 3:91 gears that I removed. Hooray!