My 2004 4cyl 5spd ranger came with a 3.73 ratio on the rear differential. At
55mph the tach is at 2000 rpm in 5th. If I changed to a 4.10 ratio, what would be the rms at 55mph? I get about 2,200 rpms (4.10/3.73 *2000=) does this sound correct?I wonder what to expect on costs? I would like a limited slip differential.
Thanks
Check out the math yourself with online calculator at link below
Thanks. I'll have to find out my transmission ratios for the 5 speed. John
Check out this link to help ID your tranny
It is correct.
Al
Why do you want to change?
It is not cheap, and most mechanics' are not very good at it.
I wouldn't own a truck without a limited slip rear differential. I wouldn't own a non 4x4 either...
On Jun 9, 10:37 am, "JohnR66" wrote: ...
You don't need to get new gears to add a limited slip. And a used
7.5" limited slip differential (minus the ring gear and pinion gear) should be cheap to find. Especially if you hang out around 4x4 shops as many ranger folk upgrade their diffs to the bigger 8.8.MotorsForum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.