Gears??

[stroked_jimmy]

Ive been serching for a list of good gear ratios to run but have not found any info. What gear ratios are you guys running and how do you like them? My vehicle specs: sbc 383 TH350, 203, Dana44/14Bolt, 36" tires
plan on welding the rear and open front for now.
plan on playing on rocks and in mud, also using for hunting. thinkin 4:10 or 4:56s
Thanks for an help

 

[reece13]

4.56.... Thats what i run. I have 37's and its just right. speedometer is accurate aswell..BUT..i have a 700r4 trans. You could prob. get away with 4.10s since you have a 383 and no overdrive and not kill the gas mileage if you drive on the street much.

 

[1BEATK5]

What gears do you have now? Would you say you spend more time over 55mph or under 55 mph? Also, can you live with driving slower on the freeway?

 

[stroked_jimmy]

no freeways at all, only pavenment would be back roads to the mountains.. running stock gears now

 

[1BEATK5]

Stock gears could be 3.73, 4.10s or even 4.56, so I think that would be the first step. Find out what exactly you have now.

 

[Hogback Fabrication]

no freeways at all, only pavenment would be back roads to the mountains.. running stock gears now

For street driving, 3.73 for highway performance and 4.10 for all around.

I ran 37's with 4.56 gears and an SM465 (the manual trans runs a couple hundred RPM lower than your auto because of torque converter slip) and it screamed on the highway, ~3000 RPM@70mph. It worked and didn't hurt anything, but pretty deep for optimal economy.

For all out performance, 5.38's are available.

 

[chulisohombre]

If you're staying under 55 on back road I'd put in 4.56 gears. Will give you better off road performance and keep ya around 2200-2500 at 55 mph. I have 410 and don't go over 60 and I'm under 2800 so that should work perfect for what you do.