3.73's or 4.10's

[Chaz]

4.10,,,,41 teeth on ring gear and 10 on pinion
3.73,,,,41 teeth on ring gear and 11 on pinion

total difference is one tooth on pinion and about 200rpm difference I think,,,,,,???

 

[skysurfer]

The only question I have is are you sure you have 4.10,s because I think im runnin around 2600 rpm at about 65 in my truck with the 3.73???? My speedo could be off though but it feels like I dont want to go deeper gears for any highway driving....

Yeah, the original owner towed horse trailers with it so she opted for the GT5 (4.10) rear end. I'm happy with the combo. Your speedometer is probably off by about 5 mph at freeway speeds. The difference between the stock tire size and the 35's on mine works out to be an indicated 60 mph is actually 65.4 with the taller tires.

http://www.csgnetwork.com/speedocalibcalc.html

 

[89Suburban]

Now You fuggers making Me want to go and spend a bunch of money, foolishley, on a tach.

Yah now I got to get mine installed LOL


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