If I were to buy new gears for my truck. Would I be able to buy different speedometer gears so that my speedometer still works.

 

If you don't tell us what your truck is, no one can answer your questions

 

Oh. sorry. Its an '89 F-150 with a 302 and the mazda 5speed. I want a higher gear ratio in the rear end for hauling my toys. ( sled and quad ) thanks

 

Yes - Ford sells them for ~$8ea. You'll probably have to do your own math to get the right tooth-counts. Do a few searches - there have been several discussions of it.

 

Hey there strange ranger. Well I did a search and I came up with a perfect find. It was a near exact match to my situation. A 1989 f-150 with a mechanical speedo. changing from 3.08 gears to 3.73 with LT235/75R15 tires when the OEM tires were 215/75R15 .I found I will need a 21 tooth driven gear for my speedometer cable because ford does not have a 22 tooth. Judging from your other advice from the links you definitely know your stuff. Keep up the good work and thanks again.