Rear Diff Size

[nitrobass24]

Im going to order a Spicer rear diff cover and replace my gear oil, but im not sure which size I have. 8.8 or 9.75. Whats the best way to tell which one I have on my truck?

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[CoolCoyote]

I'm almost certain all Powerboost trucks have the 9.75. But I'm sure someone will be along shortly to confirm.

 

[RcFlyer330]

Take a look at your diff the 9.75 the diff is angled/ tapered on the right side looking from the rear the 8.8 is more square shaped.

 

[nitrobass24]

Take a look at your diff the 9.75 the diff is angled/ tapered on the right side looking from the rear the 8.8 is more square shaped.

Thank you, have the 9.75.

 

[z-man]

Look at this

 

[HammaMan]

All PBs have 9.75"

 

[FaaWrenchBndr]

What Hamma’ said……

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