8" carrier rebuild
First of all thanks gearman for the reply.
I got the needed parts for my carrier at Zimmer Gears in Baton Rouge, La. Changed all the carrier bearings and spent a lot of time setting the gears for correct mesh. Reused the pinion and ring gear. My question is I have a slight whine on the coast down and no noise when driving. Will this hurt to drive for a few weeks. I want to attend a streetrod show in Crosset, Arkansas the first week of November.
I got the needed parts for my carrier at Zimmer Gears in Baton Rouge, La. Changed all the carrier bearings and spent a lot of time setting the gears for correct mesh. Reused the pinion and ring gear. My question is I have a slight whine on the coast down and no noise when driving. Will this hurt to drive for a few weeks. I want to attend a streetrod show in Crosset, Arkansas the first week of November.
I would not drive at all until the problem was found. I reccomend checking the pinion preload. If the pinion preload was inadvertantly over torqued this could be the cause of the noise.
Regarding bearing noise: outer pinion bearing is more prominent to make noise on deacceleration. Inner pinion bearing is more inclined to emit noise on acceleration. If bearing preload is too heavy, subsurface fatigue (also know as spalling) will occur to the inner cone surface of the bearings and to cup of each bearing combination. An easy was to determine if you have driven much with it making noise--examine the lube carefully for small shiney metal flakes. If shiney particles are found in the lube--you need new inner and outer pinion cups and cones, new seal, crush sleeve and pinion nut--minimum.
Do you have a digital camera available? If so, and you disassemble this thing again, you are welcome to email me photos. I deal with situations like this five days a week at my vocation. I have never used the private messaging here on F-150. Just post in the gear section--hey gearman!
Regarding bearing noise: outer pinion bearing is more prominent to make noise on deacceleration. Inner pinion bearing is more inclined to emit noise on acceleration. If bearing preload is too heavy, subsurface fatigue (also know as spalling) will occur to the inner cone surface of the bearings and to cup of each bearing combination. An easy was to determine if you have driven much with it making noise--examine the lube carefully for small shiney metal flakes. If shiney particles are found in the lube--you need new inner and outer pinion cups and cones, new seal, crush sleeve and pinion nut--minimum.
Do you have a digital camera available? If so, and you disassemble this thing again, you are welcome to email me photos. I deal with situations like this five days a week at my vocation. I have never used the private messaging here on F-150. Just post in the gear section--hey gearman!
8" carrier out
Removed the 8" carrier out of my streetrod and replaced with a known good one thanks to cousin who delivered it. The grease mark on the ring gear was still there and was running low on the teeth on the coast side. the run side looks good. Is this possible for one to be good and the other bad? Will take it to a local gear shop and have them look at it and repair. Also have up and down slack in pinion shaft? Leaving in the morning for Arkansa in the 31 Dodge for a streetrod show on the weekend. The El is on the road and the Dodge rod is ready for my birthday weekend. Life is Good!!!!!!!!!
Last edited by doforlet; Nov 3, 2004 at 09:20 PM.


