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Author Topic: RPO HE4  (Read 2256 times)

Offline 1980cdeluxe

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RPO HE4
« on: May 22, 2006, 04:13:00 PM »
RPO HE4

All original paperwork from only other owner on my 1978 scottsdale 2wd big10 states it has this option, -Axle-RR-340.. I was wondering if it's 3.40? I was planning 3.73's in the future, but would it really be a big change? I don't have a lot of info on the 3.40, so any would be appreciated :)

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Offline roundedline

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Re: RPO HE4
« Reply #1 on: May 22, 2006, 11:20:00 PM »
Just 1/4 less turn on the ratio.  It would be a couple hundred RPM difference.  I wouldn't go with 3.73's unless I had tall tires or an overdrive.  3.40 would be about the max w/ 28" tall tires and no overdrive in my opinion.

Chris Lucas
www.73-87chevytrucks.com
www.captkaoscustoms.com
Project Su
Jimmy 2WD Project

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