What rear diff. do you use in your nova?
and what year nova do you have?

i have a 70 nova and am trying to decide wich way to go with my rearend?
10 bolt 8.5?
12 bolt?
9" ford?
8 3/4 ?

I have 73 nova 8.5 3:42 posi rear.

No compalints and now with a 454.

However, I have never used slicks.

i have a 69 with a 12 bolt rear and 3:55's.
i used to have 4.56's but decided i wanted to cruise the streets more.

12bolt = expensive

8.5" with all the goodies is very close to as stong as a 12 blot and on the cheap compaired to a 12 bolt.

8.75 all the Mopar guys hord<sp>

9" is ok I guess ? and I do like the ease of changing centers for street and strip.

We have a 9" with 3.70 posi that is suspended by 4 link bars and coil-overs in the '63 coupe.

9 inch w/3.55 ladderbars and coilovers...

Original 12 bolt, rebuild with 4.11 gears.

It works!

:)

9" F*rd with 3:70's, 390s, 456s, 300s (my friends say I have a problem with commitment, I say I like to keep my options open...)
Gotta love the poor mans quick change!
Easy to set up, & parts are everywhere!
Havent blown one up yet! (knock, knock)

Frank T

12 bolt with 456 gears and a spool

My 72 currently has a 3.08 open 8.5. Waiting to go in, is a 12-bolt 4.10 posi (from a 69 Camaro, hee hee).


Dan (take that you Nova-robbing Camaro boys) :waving:

Currently I have a 12 bolt with 3.73's but with the cam I am currently thinking about I have a feeling 4.10's are in my future....HEY if you want em fast you gotta pay the pipper;)....Course the piper doesnt have to be such a pig about things...lol

Hey Danno are you ready for the drop in MPG?...Also are you still planning on road trips after the new gears? I used one of those online calculators and the difference in RPMS between the 3.73's and the 4.10's should only be about a 10% increase...:)

My 72 has a beefed up 10 bolt 8.5 in it w/Mark Williams and c clip eliminators. Posi was done by Toms differentials in Ca. My 69 has a Dana 60 under it. It was a comp elim car at one time. I have now converted it to Pro Street. Both of these cars are running 4:56's in them. My 70 has a Ford 9" from Curries under it packing 3:91 gears.