10 Bolt Rear
 

I have a 1968 Le Mans with a ten bolt rear with 2.93 gears. Can a posi unit with higher numerical gears, say 3.42 or 3.55 be installed in this housing?

Housing yes, but not sure you may have to use a spacer plate for the taller gear with your present posi unit. Some people make thicker gears for the low ratio posi units. Do a google search for the gears with your present posi unit.

JMO

Zip.

if the 10bolt has ears on the bottom, its rebuildable, if not, its not
recommended for strength or abuse, good luck bud :wink:

Here are a few.

http://www.markwilliams.com/gm10bolt...CategoryID=183

http://www.chevyhiperformance.com/te...all/index.html

http://roadtrip.yearone.com/2010/04/...nd-how-to.html

http://www.drivetrain.com/parts_cata...d_pinions.html

I'd be shoving a 12 bolt or 9" under there.

I had an 8.2 in my 68 lemans and installed a 4.56 with a spacer,but it didnt last long.Eventually found a 12 bolt out of a chevelle that fit the bill.

I have a 8.5 10 bolt in my monte carlo with moser internals so far so good and the car runs 10.20's.Some one said they were good up to about 650 hp.

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