4:10 or 3:73 ?
Possible upgrading to Ram dually. I'm pulling 12,500# gvw with SRW and 3.42 rear end. Usually lock 6th gear out. Plan is to move up to new 15,000# gvw 5th. Not sure if I want to get 4.10 or 3:73. Wh...
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bluegrass smokers wrote:
The tire size is 245/75SR17.
So far what I am reading is the truck will work with either gear ratio since the weight is 16500? The 3.55 will make less RPMs when driving at highway speeds without the trailer load?
I am a wood/building guy, I know where the fuel goes in on my truck and that's about it.
You can put your numbers in here and see what your rpms would be.
http://www.crawlpedia.com/rpm_gear_calculator.htm
3.55's are def the way to go with those tires
5th @65=2140
6th @65=1698
4.10
5th @65=2473
6th @65=1961
