BillR
Toy Jeep driver!
- Location
- Flagstaff, AZ
A buddy and I are in the middle of a rebuild of an HP Dana 30 for my XJ, and we've run into a question.
I have the original gears that came out of this housing. The pinion is marked "+1" on the face. On my gears to be installed, the pinion has "+3". I know that this is the distance from the standard checking distance for pinion depth. Here's the "issue"...
The older pinion that came out of the housing has a .028" thick oil slinger under the bearing. The newer gear has a .055" slinger that was mounted on. (these are used gears). We used the slinger that was on the newer gear, then added the .002" shims to the thickness that was alrteady on the older gears to get the pinion depth. The pattern is really good, but we ran out of shims before we got to the proper preload setting for the pinion nut. The old set of gears only had .054" in shims for preload. My install kit comes with .094" in total shims, and that doesn't seem to be enough. (preload is still too tight)
We've checked to make sure that the races are seated correctly, and the backlash is .006" and the pattern is great! Do we need to just keep adding shims for the pinion preload, or is the different oil slinger thickness throwing things off? Is the slinger housing-specific?
TIA!!
I have the original gears that came out of this housing. The pinion is marked "+1" on the face. On my gears to be installed, the pinion has "+3". I know that this is the distance from the standard checking distance for pinion depth. Here's the "issue"...
The older pinion that came out of the housing has a .028" thick oil slinger under the bearing. The newer gear has a .055" slinger that was mounted on. (these are used gears). We used the slinger that was on the newer gear, then added the .002" shims to the thickness that was alrteady on the older gears to get the pinion depth. The pattern is really good, but we ran out of shims before we got to the proper preload setting for the pinion nut. The old set of gears only had .054" in shims for preload. My install kit comes with .094" in total shims, and that doesn't seem to be enough. (preload is still too tight)
We've checked to make sure that the races are seated correctly, and the backlash is .006" and the pattern is great! Do we need to just keep adding shims for the pinion preload, or is the different oil slinger thickness throwing things off? Is the slinger housing-specific?
TIA!!
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