New Auburn Posi w/install kit f/s (pics)

[87buickracer]

I have a brand new in the box auburn posi limited slip differential with richmond installation kit for sale.The bearings are already pressed on and ready for installation.
details for each-
1)auburn posi limited slip differential (part#542018)
gm 1971-88 , 8.5" + 8.6" ring gear
10 bolt , 28 teeth
2.73 + up ratio

2)Richmond Installation kit (part#83-1021-1)
gm 8.5" , 10 bolt ring and pinion installation kit

Price for both is $499.00 plus shipping in u.s
Sold as a set only.Will not seperate..
postal money orders and paypal accepted(add 3% for paypal)

 

[DCVING 6]

What else would be needed to swap this into a Non posi rear end?

 

[87buickracer]

What else would be needed to swap this into a Non posi rear end?

Install your 3.42 or 3.73 gears and axles and that's it..