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Posted by Grant [64.234.252.6] on Monday, October 04, 2010 at 13:13:36 :
In Reply to: Re: W500 rear posi, how to find on data plate posted by 64w200crewcab [75.199.15.74] on Sunday, October 03, 2010 at 20:19:17 :
My 64 manual shows notes about Sure Grip.
available on the 4.88 single wheel W300 Dana-70
Not available on the 4.88 W300 dual wheel Dana-70
duals required for 10K GVW
Not available on the 5.87 W300 dual wheel Dana-70
Not available on the 6.8 W500 H-141 Rockwell axle
On my 64 TWPW you can see the sure grip through the Dana 60 fill hole. It is cylindrical vs spider gears.
As far as I know the data plate never showed sure grip info. There would be a tag on the diff. mine was there, but torn in half.
Gar