rebuilding a ford 9 inch

[digitalracer]

well i have horrible noises coming from my rear differential. so it appears as if time for a rebuild. has anyone done this themselves and if so how difficult is it. i know you have to have a few special tools (dial indicator calipers) but other than that what is involved does any one have instructions on doing this please help its in a 78 bronco and i want to get it back on the road as soon as possible thanks

 

[RTM]

well i have horrible noises coming from my rear differential. so it appears as if time for a rebuild. has anyone done this themselves and if so how difficult is it.  i know you have  to have a few special tools (dial indicator calipers) but other than that what is involved does any one have instructions on doing this please help  its in a 78 bronco and i want to get it back on the road as soon as possible thanks

18031[/snapback]

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I've done a few of them. I would search the net for info first and see what you can come up with. I am not sure I have a link at home or not. I have an old mustang magazine I use for my torque specs.

The biggest thing will be setting the preload on the pinion bearings correctly and then setting the pinion depth. You can also install a solid sleeve instead of a crush sleeve. this will provide a much stronger set up and it will live longer as well. Set your back lash with a dial indicator and your good to go. Just check wear pattern, it will tell you everything you need to know. The pinion depth will affect the wear pattern.

I just found a link that will help you. I didn't think I had this saved at work but I did. http://www.ford-trucks.com/articles/9inch/index.php

good luck

 

[Broncoholics]

I have instructions. lets see if they can be read. Might need to blow them up, here's first try...

 

[Broncoholics]

Have you looking inside or drained the gear oil out yet? Could be that the pinion bearing is dry or bad and the gears are OK.

 

[digitalracer]

well i just finished taking the rear axle apart and i found the problem... two teeth on the ring gear broken off. i found them swimming at the bottom of the housing. so now i have to decide if i want to buy a new center section or if i want to rebuild this one. i think ill probally go with a whole new center section since ive already found a couple around here for 150 or less (used). anybody have any opinions on this let me know thanks

 

[RTM]

well i just finished taking the rear axle apart and i found the problem... two teeth on the ring gear broken off.  i found them swimming at the bottom of the housing. so now i have to decide if i want to buy a new center section or if i want to rebuild this one.  i think ill probally go with a whole new center section since ive already found a couple around here for 150 or less (used). anybody have any opinions on this let me know thanks

18097[/snapback]

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I have a used 3.50 ring and pinion gear set I will sell for $35 plus shipping. It's just the ring & pinion gear, not a complete third member.

 

[79bigbronco]

If u'r not sure of what u'r doing it is probably easiest to buy a used one & install it as a third mem. >-

 

[Billz4x4z]

I'd buy the used third member,can have it back up and runnin in a few hours.Be sure to clean the axle tubes out,you don't want any fine metal to make its way back into the new diff.