Not really Willys related but I figured non-hardcore Jeep wouldn't get me any answers and Hardcore would probably just get me flamed...
I bought a set of widetrack axles from an '85 CJ7 with Powertrax NoSlips and 3.73 gears installed for a good price then scored a set of virtually new but installed 4.56 gears. I'm swapping the Powertrax into my '79 CJ5 along with the 4.56, and the Model 20 I finished putting together earlier today with a set of Moser 1 piece axles.
But, I can't decipher the info on the Dana 30 pinion. I mean I can read it, just don't understand it. The gears appear to be same manufacturer looking at the stampings, but the Model 20 has 125, 2.551, .006 engraved on it. (Gear set 125 to match them, 2.551 installed depth, .006 backlash all makes sense. The Model 20 uses the long extension for the gauge calibrated to 3.375) The numbers are duplicated on the side of the ring gear.
But the Dana 30 has 133, 3.625 and the 133 is also on the ring gear. According to my T&D Machine Pinion depth instructions, the 2.50 calibrated depth is what I should be using for the 30 which means I'm looking for a number LESS than 2.5 which obviously the 3.625 is not. Also according to the T&D instructions, 3.625 is the Master Housing Depth (MHD) for a Dana 30.
The pinion still has the shims and oil slinger on it from the previous installation. It was done by a shop for a customer who only put a few miles on it before bringing it back and having smaller numeric gears installed.
What would the next step be in the installation process? My thoughts are to proceed with the install working off the ASS-umption that the depth is close. Anybody else?
I bought a set of widetrack axles from an '85 CJ7 with Powertrax NoSlips and 3.73 gears installed for a good price then scored a set of virtually new but installed 4.56 gears. I'm swapping the Powertrax into my '79 CJ5 along with the 4.56, and the Model 20 I finished putting together earlier today with a set of Moser 1 piece axles.
But, I can't decipher the info on the Dana 30 pinion. I mean I can read it, just don't understand it. The gears appear to be same manufacturer looking at the stampings, but the Model 20 has 125, 2.551, .006 engraved on it. (Gear set 125 to match them, 2.551 installed depth, .006 backlash all makes sense. The Model 20 uses the long extension for the gauge calibrated to 3.375) The numbers are duplicated on the side of the ring gear.
But the Dana 30 has 133, 3.625 and the 133 is also on the ring gear. According to my T&D Machine Pinion depth instructions, the 2.50 calibrated depth is what I should be using for the 30 which means I'm looking for a number LESS than 2.5 which obviously the 3.625 is not. Also according to the T&D instructions, 3.625 is the Master Housing Depth (MHD) for a Dana 30.
The pinion still has the shims and oil slinger on it from the previous installation. It was done by a shop for a customer who only put a few miles on it before bringing it back and having smaller numeric gears installed.
What would the next step be in the installation process? My thoughts are to proceed with the install working off the ASS-umption that the depth is close. Anybody else?