in my 5.0 notch, i was told it has 3.73s. without popping off the cover, can you help me figure out what they are? at 100k im turning 1800-1900ish rpm. with a 275/40/17 tire. its a 5 speed car, ive only have chevs before with 373s and i was turning close to 3000rpm in my 4speed malibu so im curious. thanks.

 

with my 3:08's back in 90 at 60 I think it turned 1600ish. Oh welcome and hope someone can help

 

oops i forgot this was my first post! ive spent so much time just lurking around on this site. thanks a lot.

 

jack up the rearend, and turn your rear wheels once around, while keeping an eye on the driveshaft. count the revolutions........


I've currently got 3.73 and I run about 1900 rpms at 100klm/hr with a 26" tall tire.

 

its a good idea to use a grease penile and mark a line on the drive shaft so its easier to count the revolutions hope this helps

 

^^^great thinking