Starliner Posted August 12 Share Posted August 12 Its a good clunk that gives, with play about 3/8" travel. Big job? Ignore it? I see rebuild kits on Rock for $100 or so. If I can doi it on the ground, I could put it on my todo list. Everything else is coming together. Thanks to you guys. Link to comment Share on other sites More sharing options...
ArdWrknTrk Posted August 12 Share Posted August 12 3/8" in & out??? 😳 Does the yoke wiggle side to side at all (out of gear, wheels chocked) Is this a D70 or 80 in your bucket truck? Rebuilding my 10.25 was a months long odyssey of incorrect parts and broken tools. Link to comment Share on other sites More sharing options...
Starliner Posted August 12 Author Share Posted August 12 3/8" in & out??? 😳 Does the yoke wiggle side to side at all (out of gear, wheels chocked) Is this a D70 or 80 in your bucket truck? Rebuilding my 10.25 was a months long odyssey of incorrect parts and broken tools. Geeze, i only checked clockwise/counterclockwise play. The driveshaft is pretty tight to it. It is noticable when I put it on gear, Jim. A pretty strong clunk. My buddy, a lifelong wrencher said meh, it's an old truck, no biggie. Then again, he isn't phased by much these days. D70 or 80, don't know what that is. I will check side to side. A MONTH? no thanks. I would rather run it til it breaks. I AM changing gear oil fully. God only knows what is in there. Link to comment Share on other sites More sharing options...
ArdWrknTrk Posted August 12 Share Posted August 12 Geeze, i only checked clockwise/counterclockwise play. The driveshaft is pretty tight to it. It is noticable when I put it on gear, Jim. A pretty strong clunk. My buddy, a lifelong wrencher said meh, it's an old truck, no biggie. Then again, he isn't phased by much these days. D70 or 80, don't know what that is. I will check side to side. A MONTH? no thanks. I would rather run it til it breaks. I AM changing gear oil fully. God only knows what is in there. Like your friend said, rotational play is probably ok. Any in and out is very bad. Link to comment Share on other sites More sharing options...
viven44 Posted August 12 Share Posted August 12 Geeze, i only checked clockwise/counterclockwise play. The driveshaft is pretty tight to it. It is noticable when I put it on gear, Jim. A pretty strong clunk. My buddy, a lifelong wrencher said meh, it's an old truck, no biggie. Then again, he isn't phased by much these days. D70 or 80, don't know what that is. I will check side to side. A MONTH? no thanks. I would rather run it til it breaks. I AM changing gear oil fully. God only knows what is in there. Is this your truck with the 8.8” rear end ? Lift the rear tires off the ground and see how much rotational play they have …. A lot of play there would indicate wear on axle splines… That’s probably part of that clunk. Fluid is probably high on natural abrasives! And agree with Jim, in and out play would indicate pinion nut or crush sleeve isn’t doing it’s job.. that would be bad Link to comment Share on other sites More sharing options...
ArdWrknTrk Posted August 12 Share Posted August 12 Is this your truck with the 8.8” rear end ? Lift the rear tires off the ground and see how much rotational play they have …. A lot of play there would indicate wear on axle splines… That’s probably part of that clunk. Fluid is probably high on natural abrasives! And agree with Jim, in and out play would indicate pinion nut or crush sleeve isn’t doing it’s job.. that would be bad If it's an '84 F-250 it should have a D60 out back. Link to comment Share on other sites More sharing options...
viven44 Posted August 12 Share Posted August 12 If it's an '84 F-250 it should have a D60 out back. I’m just going off the signature Link to comment Share on other sites More sharing options...
ArdWrknTrk Posted August 12 Share Posted August 12 I’m just going off the signature And I'm stupid enough to go to Joe's introductory post, where he mentioned the 250. But this is why it's good to have that info in the thread title.... Link to comment Share on other sites More sharing options...
mat in tn Posted August 12 Share Posted August 12 And I'm stupid enough to go to Joe's introductory post, where he mentioned the 250. But this is why it's good to have that info in the thread title.... being an 83, I would expect it to be a 9". either way the oil is a good thing to change/inspect. are there any leaks? leaks are an excellent sign of where the wear and slop is. pinion seals are most susceptible to this as they sling oil like a fan. but the 9"is a different animal entirely from the rear loading differentials. Link to comment Share on other sites More sharing options...
viven44 Posted August 12 Share Posted August 12 being an 83, I would expect it to be a 9". either way the oil is a good thing to change/inspect. are there any leaks? leaks are an excellent sign of where the wear and slop is. pinion seals are most susceptible to this as they sling oil like a fan. but the 9"is a different animal entirely from the rear loading differentials. If its the same 83 that Joe wanted to ID a few days ago, we established only based on the VIN TAG that it was an 8.8"...... If Joe has a picture of the rear end, showing the front and back we can ID it more definitively. Since 9" swaps are very common. Link to comment Share on other sites More sharing options...
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