8.5" 10 bolt rear differential recomendations

[Thunder]

Cant convert a 10 bolt Gov lock. You need an open carrier If you go with a lockrite or other lunch box locker that replaces the spyder gears.
If you go detriot, eaton, aubern, ECT you take out the old gov bomb remove the ring gear and install it on the new carrier assembly that you replace the gov bomb with.

If you already have an open diff your Cheapest route is a lockrite. Should be able to get one for around 250. It will be plenty strong for a stock 10B set up.

 

[beater_k20]

Stick with the 10b. People give the 1/2 axles away, so finding replacement parts should be cheeper than a $150 14b. I couldn't sell my 1/2 ton axles for $100 (for both) so I dropped them off at the local parts yard. A year later they still had them. Check Ebay. I know I can get a Ford 1/2 ton diff. for $50. I have never looked for a 10b diff., but I'd bet they are there.

again, we're not dealing with 73-87 stuff, this is a 1991 IFS K1500. these parts are not being given away. they want $700+ for a rear axle at the JYs around here. the spring perch widths are different, as are the WMS to WMS measurements. a 73-87(91) axle WILL NOT WORK.

 

[beater_k20]

anybody else? the Eaton posi looks like its winning so far.