1986 Blazer 8.5 Gov Lock Posi options

[Nova Research Project]

Hello All,

My son Tyler is driving my restored 1986 K5 Blazer and was complaining about some rear wheel chatter when turning left. Since he is in school for auto mechanics, I told him could be posi binding and to pull the rear to drain the fluid take a look. Might just need more limited slip additive.

The rear is a GM 10 bolt 8.5 3.08 Posi. I guess this means it is a Gov Lock type. No surprise after 275,000 on it that it finally grenaded. Lots of little shinny metal pieces on the magnet and the bottom of the housing.

The truck is stock 305 (over 30) with a mild tow cam. He Does not do much towing. One time he did tow a buddy's car 300 miles home last year. It is his daily driver. Gas mileage means more that anything right now.

What are the best options for replacement?

A. Rebuild the posi clutch pack? (heard GM disc the parts in 2010)
B. Replace is with a Reman unit?
C. Get a unit from a junk yard?
D. Replace with aftermarket?
E. Clean out the debris and keep driving it?
F. Other

Remember he is in school with only a part time job at AutoZone, so he needs to make every penny count.

Thanks,
Greg