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godtool
01-29-2013, 01:59 PM
I have a 1975 front dana 44 with f/t hubs under my 3/4 ton 83 chevy 4x4 p-u plow truck. I blew out the u-joint on passenger side axle trying to get unstuck and wrecked the yoke ears on it. I picked up a used one and once I got home I noticed the stub where it slides into diff was really worn, like a groove 1/16" deep by 1/4 wide in places, maybe caused by axle seal or ??. I figured oops my diff is going to leak gear oil once I slide it in. So once its all back together I hear my front diff clicking\slipping. So where the wear mark was on shiny part of stub may be caused by an old bearing gone in diff it originally came out of?? I ordered a new inner axle from Gears & Rears right away and picking it up at greyhound today. I don't want to wreck my diff with an old inner that could cause more damage lol. So you guys think I'm on right track? I'll post pics of it and some badly beaten yokes lol

Apathy
01-29-2013, 02:05 PM
probably the spindle bearings.

StinkFinger
01-29-2013, 05:13 PM
there is a berring or bushing in the spindal or in your case should be in the spindal im willing to bet that this is your problem

godtool
01-29-2013, 06:40 PM
No, its not the spindle bearing or anything todo with the outter stub axle. Its the inner passenger side axle I'm talking about. It has a really bad groove worn in it from most likely the diff passenger side axle seal and no oil in diff. I'm thinking where the splines of the inner axle slide into the diff there is the shiny sirface where the axle seal rides. There is a really bad groove worn around it and I'm thinking its not riding in diff axle bearing correctlly.

godtool
01-29-2013, 07:29 PM
Just seems like every time front end "clicks" loudly it loses forward momentum for a second. Just thinking inner passenger axle in diff is slipping.

85chevy
01-29-2013, 07:47 PM
Did u check the actually u joint to make sure its not missing a clip or that its needles haven't fallen out?
And the sealing surface is close to the splines on a front diff

crimsen
01-29-2013, 07:48 PM
there is no bearing in the axle tube. shaft should sit inside the dif and is supported by the carrier that is supported by the bearing.

you should only have a seal near the carrier to keep oil from running down the axle tubes, or else the seal will be at the end of the axle tube where it is servicable.

there is absolutly nothing about an inner axle shaft that will cause a clunking banging clicking noise. you either screwed up the spindle/hub or the dif. only way it might relate is if you got the wrong length shaft and its bottoming out or not making full contact.

godtool
01-29-2013, 07:49 PM
Hey thanks for the help. I'm thinking the clicking is my front driveshaft. So I'll check that for a worn ujoint etc tommorrow morning. I hope the guts of the front diff are ok. I've blown two front axle u-joints trying to get unstuck while running chains on the front!! Once last winter and again this winter. I got to remember to winch myself out rather try to jimmy back and forth!!

godtool
01-29-2013, 07:52 PM
Yah I made sure inner axle is right length. Gears & Rears had me find numbers on axle tube so I'll re and re that inner axle so it doesn't leak and at same time check inner axle length with new axle from Gears & Rears.

godtool
01-29-2013, 07:57 PM
Yah I'll check all my u-joints in front d.s. and axles. This front diff was great for 4x4ing and snowplowing for 5 yrs plus till I abused it with running chains on front and trying to get unstuck plus not paying attention to looking at my axle ujoints cond. week to week. Learning the hard way again... Plowed in 2high today till I pull stuff apart tommorrow. Just cant plow the "steep" driveway to my wrecks lol.

Apathy
01-29-2013, 09:21 PM
any type of locker up front?

StinkFinger
01-29-2013, 09:32 PM
if the axle is moving enough that a grove is wearing in it your spindal berings are gone or the u joint was severley worn. the inner shaft is only suported buy the u joint on one end and the splines on the other there are no berrings or bushings or any thing otherwise to support the axle

godtool
01-30-2013, 09:47 PM
Well found out what happened, the differential side gears and two smaller pinion gears in the carrier have a bunch of teeth busted off :(. I have a 2nd dana 44 for parts so if its same gear ratio I'll just re&re the entire diff. If not just use the gears from it. And the worn inner axle shaft that had the groove in it was leaking diff oil like a sieve. I'll post some pics tomorrow. I guess I could just weld up the gears in the carrier but dont want a f\t locked diff lol. Anyone know the torque specs for the 1974-75 dana 44 bearing cap bolts! Thx for all the help!

Apathy
01-30-2013, 10:29 PM
Go to ring pinion .com

Down load the manual. All the info you need is there.

godtool
01-30-2013, 10:40 PM
Thanks! :)

godtool
01-31-2013, 11:41 AM
Ok putting pics in carnage this morning... ....

godtool
02-12-2013, 06:20 PM
And another pic in carnage.... lol