Changing gear ratio

[paw paw 59]

I have a 700R with 373 gears I turn about 2700 @ 70mph. I would like to go to a 410 gear does anybody know about how many more rpm's I would be looking at. Thanks

 

[foamypirate]

Are you sure about your gearing? A 700R4 with 3.73s and a 28" tire (factory size), should be doing about 2100 RPM at 70mph... Even 4.56's with that setup would only be 2600rpm @ 70mph.

What size of tires are you running?

 

[crazy4offroad]

Yeah you would need to be running a 22" tall tire to be turning 2700 rpms @ 70 in overdrive, you sure OD is working? 31" tire in 3rd would be around 2800 rpms... http://www.grimmjeeper.com/gears.html

 

[heavyleft]

Yeah, that doesnt sound right.

 

[paw paw 59]

gear ratio

Sorry guys I have a 2 wheel drive with 265 60 R 15 tires I didn't know this was a 4 wheel drive forum

 

[foamypirate]

Sorry guys I have a 2 wheel drive with 265 60 R 15 tires I didn't know this was a 4 wheel drive forum

It's not a 4-wheel drive only forum...

When I said 4.56s would only be turning 2600rpm, I wasn't saying you should install 4.56s, I was saying the numbers don't add up.