JR's Planning ground up! - Please Help!
CJim7
Crazy Sr. Respected Jeeper
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- Twin Falls ID
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- '84 CJ7 - 430hp 401 on propane - T18a/D300 twinsticked, Superior axles, Lockers, full boatsides, Warn 8274, OBA, 36" TSL's.
I always wonder why people shy away from the low gearing.
With my SM465 , Dana 300 4 to 1 conversion and 3.54 gears I can push my AMC 258 i6 / 4.2l to 5000 rpms and be doing 139 mph.![]()
Lol

Another note on 4:1 xfercase gearing, and I could be a little outdated on this, but the Lomax gearset is reputed as stronger than the Terra kit. At one point, it was even cheaper...but that was when I first saw them hit the market.
I think Im going to shuffle a Lomax kit into my future plans.....I want to keep the 4.10's in the axles for now.