still looking for posi-unit to fit o axle, needs to be 3 series carrier...390's or parts for o axle unit. any help will be greatly appriciated!
Robert

 

Supercarsunlimited in Portland Oregon has brand new ones. Use the following link to check them out.

http://supercarsunlimited.com/Items.cfm?CategoryID=276

I've not purchased one but I have purchased a number of items over the years and have been happy with every transaction. John

 

I have one for the full size 88 98 olds and I have the 3 series your probably looking for too.

Problem is they are expensive. I have a fully reconditioned 3 series for 399.00 IT IS AND ORIGINAL GM UNIT NOT A FORD 8.8 UNIT THAT SUPER CARS SELLS (TRAC LOC UNIT) it is 28 spline unit for bolt in axles and the casting number is 671 which is the 3 series unit.

I also have a very rare 4 series 31 spline ORIGINAL 12 BOLT OLDS A-BODY 'O' type posi unit also (672) casting... these were only produced in 67-68 12 bolt 'o' type rears 442 only that unit is all reconditioned and 599.00 (AGAIN AN ORIGINAL GM UNIT) Not the 8.8 FORD mock unit.