When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Can anyone tell me a somewhat accurate way to determine the gear ratio without pullining the Diff. cover off. I Heard jack it up and wheel to driveshaft turning can give you the ratio. But I dont Know the formula. Thanks 1979 Ford Bronco with 38.5
If you jack up one rear wheel with a std diff and turn the wheel 10 times (WT), count the number of driveshaft revolutions (DSR) you can figure it this way:
But Bull, I don't have that many fingers! My Momma ties my shoes on in the morning with doubler knots so I cants take them off to use my toes... It is hard enuf to turn the wheel with my feet whilst I am countin!
You could look at the tag on the diff housing, you should have a ford 9''. If you don't and you have the vin code and rear end code you can go to Mil1lion's website he has a link to a decoder.
Thanks and its Ford 9" in the rear & a Dana 44 in the Front I had already looked up the tag # it said 3.50 But it pulls pretty good to be 3.50 ratio with 38 on it so ill try the wheel to D/S ratio. thanks.
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.