CJ5 rear end ringing under load. dana 44 - JeepForum.com
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Unread 01-10-2010, 10:28 PM   #1
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1955 M-38 
Join Date: Sep 2007
Location: Louisburg, NC/Camp Pendleton, CA
Posts: 1,661
CJ5 rear end ringing under load. dana 44

Wheeled the willys this weekend and ended up with a sound coming from my rear end. Sounds almost like an old telephone ringing. Comes under load and turning and is RPM dependant.

I thought I ripped up my rear end, but upon pulling the cover there was no metal shavings in the fluid and the detroit looked to be in good order. The ring gear appeared to have normal and even wear but I didn't have a light to look at the pinion.

Could be a rear axle shaft maybe? The left rear wheel has about 10* play in each direction before the other wheel starts spinning. I'm just hoping I didn't eat my pinion or locker somehow.

55 cj5 willys. Dana 18 x-case, 44 rear end(passanger side drop), detroit locker in the rear. 30 front end, locked. 5:38 gears. 33 inch super swampers. Buick 231 motor with some work done to it, turbo 350 automatic tranny.

Dylan-19 and Yearning
93 Rubigrand - Sold... :'(
95 Grand Cherokee Limited - 5.2 Mall Crawler
55 Willy's M38a1 - 231v6, 33" Super Swampers, D44 Full Floater Rear, Locked Front and Rear, 5.38 Gears, Viair OBA, Bilsteen 5100 shocks, Dana 18, Turbo 350, S10 Power Steering, Tilt-wheel, Full Cage, Flat Fenders....
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Unread 01-11-2010, 04:22 AM   #2
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1971 CJ5 
Join Date: Jan 2002
Location: Eagle Point, Oregon
Posts: 6,691
If your happy with the rear, I would check the driveline. Inspect the U joints, slip joint, the driveline itself for dings or missing balancing weights, the t case output yoke for wear/end play or anything else you can find that may cause a harmonic vibration.
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Unread 01-11-2010, 07:57 AM   #3
Mike Romain
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1986 CJ7 
Join Date: Nov 2007
Location: Off the Grid in Chester Grant, Nova Scotia, Canada
Posts: 17,213
Tail pipe hitting?
86/00 CJ7 Laredo, 33x9.5 BFG AT's, 'glass nose to tail in '00, 'New' frame,wires and plumbing in '09. Carter BBD Carbed 4.0 HO in '10.
89 YJ Renegade. BBD Carbed 4.0 HO. Locked front and rear with 33x9.5 BFG AT's
Some Canadian Bush Jeep Runs and Build Photos: http://mikeromainjeeptrips.shutterfly.com (10 new albums added Sept 16/10)
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