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Gear swap time: Turns out I have 3.42 gears
Well I recently found out that I have 3.42 rear axle gears, throught I had 3.08 gears and a factory posi differential all along.
Here:
http://ecomodder.com/forum/showthrea...new-26556.html
It kind of makes sense, I always thought I should have been getting better highway milage.
This means there is more room to pickup some MPGs.
It also means that my 8.5inch GM 10 bolt has a serries 3 gear carrier. This allows me to use the Eaton 10 bolt posi that I picked up may years ago in my axle.
Serries 3 carriers have a wider selection of gear ratios and the gear sets are cheapest of the all the carriers.
(if I had a 3.08 rear it would be a serries 1 carrier and would have fewer swap choices, but then it would already have the 3.08s I want with a posi from the factory)
I am thinking about installing 3.08s or 3.23s.
I'm leaning towards 3.08s.
What do you think?
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
Last edited by oil pan 4; 08-02-2013 at 06:30 PM..
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