Re: 10 bolt rears, 8.2" vs 8.5"...what's the difference?
i got a set of "Mopar" spring perches from a circle track supplier for $15 when i put the 8.5 in place of the 8.2 in my nova. i only needed them because the housing was setup for multi leaf and my car had mono leafs at the time.
i re-used the 8.2 axles, brakes, and rear cover and put a posi from a 79 Z/28 with Richmond 3.70 gears (bought both together for $100) in a housing i bought out of a 74 Nova in the boneyard for $50. another $40 to get the perches welded on and $50 to have my cousin's friend set it all up. another $15 in Amsoil series 2000 gear oil and i was set.
but i got off really cheap, and it worked pretty well for 4 years until i traded the car off last fall.
you don't plan sincerity.
you have to make it up on the spot.
wanna hear about 20 years ago when i was too smart to know any better?