Changing Gear Ratio From 3.73 to 4.10 - Is this OK?

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May 8, 2022 | 12:41 AM

#11

JakeCunny99

CF Beginner

Joined: May 2022

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Quote:

Originally Posted by country_09

Gears are mechanical advantage. 4.10 over 3.73 is like 200 rpm difference at 70. No way should you be at 3k at 70 mph either. 2200-2400 max accordin to my dads 2007 1500 6.0 with 4.10s. He gets 12-13 but drives the crap out of it and hauls regularly. It'll pull what he wants it to as well. If you go to put larger tires on it later, then the 4.10a will have been a great choice. I run 4.88s with my 35s and love every second of em

Yes I had 4.10:1 in my 76 GMC and at 60 mph I was well over 3000 rpm with 235/85/16s which measures 32 inches tall. No over drive obviously. It sucks when people offer an opinion in place of technical knowledge it really confuses things. Peace ppl be excellent to each other. And a manual trans so it can't be blamed on slippage. And not all overdrives offer the same rotations over direct. It is a gm page
So it likely is but it won't always apply. Blah blah now I sound like the wingnut lol peace anyways.

Last edited by JakeCunny99; May 8, 2022 at 12:48 AM.