Hey All,
I've decided it's time to replace u-joints after hearing some clacking during initial acceleration while hauling a bunch of junk last week. From what I've seen, there are slight differences between the u-joints for Spicer vs AAM driveshafts and/or rear axles. That's where my confusion lies. Being an 02, most forms of part identification are now gone or rusted over. What I was able to tell while farting around under there is, inside the front of the rear driveshaft where it meets the yoke, there is "Spicer" stamped in there, along with some numbers I haven't been able to cross-reference yet. And I've verified it's a steel yoke. Great, I figured, I'll look those up on RockAuto again. Not so fast, there's two different P/Ns for Spicer driveshafts listed there for u-joint compatibility.
So last night I crawl under there again figuring I'll get the info off the stamped tag on the rear axle itself. Foiled again, it's either missing, or under quite the layer of rust. Looking around the differential a bit more, I did find AAM stamped underneath, and a stamped P/N that I have yet to cross-reference (haven't had much time to google-fu that one yet).
So, this all leads me to more confusion, as some of the u-joints are listed to work with Spicer driveshafts (which I have, just unsure which one, 1480 or 1410), and some mention a American 1415 or Spicer 1410 axle. Has anyone dealt with identifying the correct u-joints in a scenario like this before? I'll include some truck info and the numbers I was able to see on the driveshaft and rear diff/axle assembly below.
- 2002 2500HD 8.1L Allison Ext Cab regular bed
- One piece rear driveshaft, stamped inside the front where it meets the yoke with "Spicer" and what looks to be "F238129". There is a second set of numbers stamped above those in there but difficult to see, I really should just drop the driveshaft and take a closer look for the time being.
- Rear axle stamped with "AAM" and "40006189-C"
I've decided it's time to replace u-joints after hearing some clacking during initial acceleration while hauling a bunch of junk last week. From what I've seen, there are slight differences between the u-joints for Spicer vs AAM driveshafts and/or rear axles. That's where my confusion lies. Being an 02, most forms of part identification are now gone or rusted over. What I was able to tell while farting around under there is, inside the front of the rear driveshaft where it meets the yoke, there is "Spicer" stamped in there, along with some numbers I haven't been able to cross-reference yet. And I've verified it's a steel yoke. Great, I figured, I'll look those up on RockAuto again. Not so fast, there's two different P/Ns for Spicer driveshafts listed there for u-joint compatibility.
So last night I crawl under there again figuring I'll get the info off the stamped tag on the rear axle itself. Foiled again, it's either missing, or under quite the layer of rust. Looking around the differential a bit more, I did find AAM stamped underneath, and a stamped P/N that I have yet to cross-reference (haven't had much time to google-fu that one yet).
So, this all leads me to more confusion, as some of the u-joints are listed to work with Spicer driveshafts (which I have, just unsure which one, 1480 or 1410), and some mention a American 1415 or Spicer 1410 axle. Has anyone dealt with identifying the correct u-joints in a scenario like this before? I'll include some truck info and the numbers I was able to see on the driveshaft and rear diff/axle assembly below.
- 2002 2500HD 8.1L Allison Ext Cab regular bed
- One piece rear driveshaft, stamped inside the front where it meets the yoke with "Spicer" and what looks to be "F238129". There is a second set of numbers stamped above those in there but difficult to see, I really should just drop the driveshaft and take a closer look for the time being.
- Rear axle stamped with "AAM" and "40006189-C"
