I have a stock rearend with 3.92 gears in my 55 truck. I need to reduce highway rpms and was thinking the gearing may be the least expensive start. Can anyone tell me what gearing I should look for and where? Is there a site that sells them for my truck, or are there other axles that will bolt onto my truck? any help is appreciated. Its a 239 with a three on the tree. Thanks, Steve

55 F100  Summerville, SC