OKay I know that there is a formula for calculating speed ...but I dont know it...

I think Neal knows this one ...

I have the 4R70W....265/75/16's...and 4.10's....

My tach was @ 4grand.....how fast was I going...I was in O/D of course..

Thanks guys..

5.4

 

i think he's on the D.L. haven't seen him around lately?

 

Damn factory odometers . I saw my truck hit 135mph(about 5200rpm) on the dyno the other day, that was kind of cool

 

131.1 mph, but remeber, your facory tach could be a few 100 rpms off, cause its not accurate at WOT. Still damn fast!