Yukon Gears???
 

Has anyone heard of these guys? My friend purchased a 4:11 gear ratio kit from them. He told me they are supposed to be a good company. Anyone deal with them personally?

I've been told to never put them in a car or SUV. A truck would be ok. The reason is because they will whine almost everytime. So if the cab of the car is over the axle then it's a no go. The shop that get my suspension and chassi work done at told me about a guy, was even a Mustang if I remember, who had a set of Yukon gears and they set them and re-set them and still whined, then installed a set of FRPP gears and it was perfect after that. So stick with Richmond, Motive, FRPP for gears.

thats what i told my buddy, i told him to go 4:10 frpp so well see what happens, who knows

My friend who works at a trans shop said those are THE crappiest gears made.

They don't have a super great reputation in the F150 world either.