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2nd Gen Ram Tech1994-2001 Rams: This section is for TECHNICAL discussions only, that involve the 1994 through 2001 Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.
Hey all, sorry for the hiatus, been working on some truck issues. So, after a new tranny, new driveshaft (u joints with grease fittings ) I've decided to try and help my transmission out a bit and gear my 01 1500 4x4 lower. It's got 3.55s in it, id like to know what all I need to acquire to put 4.10s in it. Also, about what RPMs will a cruising speed be? Any negative side effects? (Gas mileage is not a negative side effect for me, because the truck already gets 10 at most due to 6 inch suspension lift and 35s)
EDIT: I'm asking about cruising speed RPMs because someone told me they would be about 3250-3750 with 4.10s)
Also, would an even lower gear be better? Perhaps 4.56s?
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Last edited by RareColorRam1995; 05-05-2013 at 02:27 AM..
The o/d in the trans is .69- this chart has .7 which will be pretty close. With 4.10's @ 60 mph with o/d you'd be @ 1650 rpm; with 4.56's 1840 rpm. Turn o/d off @ 60 it would roughly be 2700 rpm with 4.56's, 2400 with 4.10's. Probably a little lower due to the t/c locking up. Personally I like a lot of gear especially with an o/d so I'd probably go 4.56's .
in the frt i think you need thick cut 4.56 to fit the d44. in the back the 4.56 need some coaxing to get it in there. 4.88s will they fit a corporate 9 1/4? and they may need to be thick cut as well.
just something to consider/ the thicker gears are usually noisier/ whine.