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3rd Gen Ram Tech2002-2008 Rams: This section is for TECHNICAL discussions only, that involve the 2002 through 2008 Rams Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.
Just got some brand new 4.56 gears installed into my differential....All i can say is that there is a significant power difference....and with the tru trac locker....the rear tires dont spin out as bad....But all i can say is for our underpowered trucks, bigger gears are definetely the way to go
I don't consider the 3.7 in the 1/2 pickup to be underpowered. It certainly has more hp than the LA318 in my 68 D100 and one and one half times the hp than the 225/6 in my 62 D100 Town Wagon!
You might have to SHIFT it more, but I can't complain about the 20 mpg.
About time someone did it, I swear there have been a ton of discussions on gears but nobody ever does it. Have you checked your mileage with the gears yet? Also what gears are you coming from 3.21's? I have 3.55's so I don't know how much I would notice.
so hawk...when you're going liek 70...what are you reving at? i know i'm stock, and when i'm cruising at 70, i'm pinned at 2k rpms..which is sweet...and is totally awesome for being able to go up in gears.
yeah i think 3.55's are the stock gears in the differential.....whatever they were they sucked. After adding the 4.56's I noticed a huge increase in power to the wheels