Madkaw Posted November 6, 2024 Report Share Posted November 6, 2024 So I think I have a bad bearing and never have done this project . Any advice and size socket( I’m going to make the special tool) for the bearing . thanks Quote Link to comment
Madkaw Posted November 7, 2024 Author Report Share Posted November 7, 2024 Well I have acquired the Nissan tool for this job . I’ll post pics once it’s in my hands Quote Link to comment
JackRT Posted November 8, 2024 Report Share Posted November 8, 2024 Looking forward to the photos and how to work on the rear axle bearing. We might work on this 720 project after we clear the Silverado in the garage. The rotors and wheels for the truck showed up so we'll take a look at the 720 next week. Quote Link to comment
Madkaw Posted November 21, 2024 Author Report Share Posted November 21, 2024 Okay so I’m ready to do the rear axle bearings . Hoping someone can explain the procedure of measuring end play with the axles . see pic below from FSM Im confused how you measure 1 vs 2 sides ? I do notice that shoving axle in and out can promote a change in readings based on how hard I shove the axle in . Is the one side supposed to be anchored in someway while you measure the opposite ? Quote Link to comment
Madkaw Posted November 23, 2024 Author Report Share Posted November 23, 2024 @datzenmike Quote Link to comment
datzenmike Posted November 23, 2024 Report Share Posted November 23, 2024 No idea. I think either side is adjustable with shims. One side is checked and the other pushed in against thrust block tightening it against the other axle but leaving some clearance. I tried to press a wheel bearing off and you wouldn't believe how things flex. I've seen them cut off with a torch, if you are careful, and seen them notched with a grinding wheel and split off. I took it to a Nissan dealer and they did it. Worth the $50. I was 3,000 miles from home. Quote Link to comment
Madkaw Posted November 23, 2024 Author Report Share Posted November 23, 2024 49 minutes ago, datzenmike said: No idea. I think either side is adjustable with shims. One side is checked and the other pushed in against thrust block tightening it against the other axle but leaving some clearance. I tried to press a wheel bearing off and you wouldn't believe how things flex. I've seen them cut off with a torch, if you are careful, and seen them notched with a grinding wheel and split off. I took it to a Nissan dealer and they did it. Worth the $50. I was 3,000 miles from home. I actually bought the proper Nissan bearing puller to do this job . $$ but worth it . Might put it out as a loaner tool for others to use . So I like your suggestion . You are saying - which I tried - is to use a C clamp to hold one axles within limits and adjust the other side ?. I’m pretty sure I have an issue with the left side . Looks like the axle is bent but it also has excessive end play . Who knows the condition of the bearing Quote Link to comment
Madkaw Posted November 26, 2024 Author Report Share Posted November 26, 2024 Well the right tool for the job makes all the difference ! It makes short work of the bearing removal and installation . Managed to remove some shims to tighten up end play . Haven’t had a chance to drive it yet so not sure if it made the difference in the highway shimmy I was getting . Might offer a loaner program for the tool Quote Link to comment
Battlecat Posted November 28, 2024 Report Share Posted November 28, 2024 I replaced both rear axle bearings and seals on my '86 720 last year. I did it exactly the way this guy did it (he's doing a D21 but the bearing and axles are identical to the 720): You adjust the axle end play with shims. I didn't need any additional shims as I used a dial indicator and pushed/pulled the axles one side at a time to determine the end play. They both were in spec. Quote Link to comment
Madkaw Posted November 28, 2024 Author Report Share Posted November 28, 2024 15 hours ago, Battlecat said: I replaced both rear axle bearings and seals on my '86 720 last year. I did it exactly the way this guy did it (he's doing a D21 but the bearing and axles are identical to the 720): You adjust the axle end play with shims. I didn't need any additional shims as I used a dial indicator and pushed/pulled the axles one side at a time to determine the end play. They both were in spec. The problem with his video is he didn’t supply any spec . He just wiggled the axle flange and called it good . I did watch that video and it was somewhat helpful. The confusion for me IS the spec in the FSM. In the end I just made sure there was less than .010 on each axle . Quote Link to comment
Battlecat Posted November 28, 2024 Report Share Posted November 28, 2024 43 minutes ago, Madkaw said: The problem with his video is he didn’t supply any spec . He just wiggled the axle flange and called it good . I did watch that video and it was somewhat helpful. The confusion for me IS the spec in the FSM. In the end I just made sure there was less than .010 on each axle . Same here with regards to the endplay spec. I was also confused as to the FSM info. I probably did the same thing you did. I've driven the truck quite a bit and have had no problems to date. Quote Link to comment
Madkaw Posted November 29, 2024 Author Report Share Posted November 29, 2024 12 hours ago, Battlecat said: Same here with regards to the endplay spec. I was also confused as to the FSM info. I probably did the same thing you did. I've driven the truck quite a bit and have had no problems to date. For reference I showed as much as .030 end play . When we took apart someone had shoved a washer behind the axle . There was evidence that someone had messed with both sides . I ended up removing shims from both sides until there was just a wiggle on both sides Quote Link to comment
Madkaw Posted December 16, 2024 Author Report Share Posted December 16, 2024 Well my problem is not solved though I think I’m in the right area to look . Changing bearing and adjusting end play just changed the sound and feel of the vibration . I think my axle is bent . Waiting for a test indicator to get here to measure run out on the hub . I need to measure the up and down during rotation to help identify if it’s bent . The bearing end play was so out of tolerance I thought adjusting that would have cured the issue . Anyone can tell me what axles interchange with an 5/83WD?? Quote Link to comment
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