I am looking to find out the front and rear gear ratio to my truck... The front is the original axle of an '82 1/2 ton diesel and the rear is a 12 bolt out of a full size blazer (I think it's an early 80's model)... I have a code off of the back axle that reads "KAJ W196 2 F"... Can anyone tell me what ratio I have or what other information that I need to get to determine that??... The glove box does not have the sticker that would contain the codes... Thank very much!!!