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| | From:  IslandPatrol (Original Message) | Sent: 6/14/2008 5:50 PM |
| Hi. The rear differential on my '65 L-60 is getting very noisy (yes, I keep it full of oil). The truck is a daily driver, not used off road much lately, and has always had locking hubs so the front differential is tight. I assume the gear assemblies are the same, front and rear? So a short-term fix might be to install the front assembly in the rear of my truck. However, I would want to replace the worn gears from the rear. Does anyone have a good differential gear assembly, including ring and pinion, for sale that would fit my truck? Thanks! |
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You might find that it isn't the ring and pinion at all, but that the axle bearings are the noisy culprit. The axle bearings tend to go before the diffs do on these truck. Quick way to check: after you drive it for a while, check the rear wheels to see if either of them are exceptionally hot. Put your hand right in the center of the wheel/drum. Yes, the ring and pinion are the same front and rear. |
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| Thank you for responding, and for the info that the front and rear axle gears are the same. I know what you mean about noisy wheel bearings, but I replaced the rear wheel bearings some time ago and repack them along with the front bearings every two years. I pulled the cover off the rear differential this morning. The carrier bearings are worn out, the carrier assembly loose, and two teeth gone on the pinion gear, probably because of the slack. So, I need a complete carrier assembly and a pinion gear. Does anyone have these for sale? I live in central California. They could probably be shipped by UPS. Thanks! |
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Adjusting a differential is a tricky procedure, so the best thing you can do, is put the complete front diff assembly as it is right now, into the rear. I've done this procedure. In my case, I didn't have locking hubs, but the interesting fact is that the front differential gears wear on opposite sides of the teeth than the rear ones. Think of it as if the car was going always backwards. So you'll be fine changing it. |
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| Thank you for the info about the front differential wear. I'm a truck and heavy-equipment mechanic, so adjusting differentials is no problem. I may have to install the front assembly in the rear as you suggested, at least as a short-term fix to get the truck back on the road, but I'm hoping someone here will have the parts I need to fix the rear. |
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