Replace M939 Front Axle Seals and Boots DIY

[brazengoat06]

On reasembly is one suppose to load the spindle tube bushing with grease?

 

[Ford Mechanic]

It needs some, I wouldn't pack it full though

 

[brazengoat06]

Finished up and drove it all day including a car show. Success! Thanks all! Any tips on uploading pics?

 

[Ford Mechanic]

Click go advanced, then manage attachments, add files, choose files, then choose the place your pics are (ex. drive E for SD card) select pic, and press upload. I normally don't do more than 2 or 3 at a time. And a good Internet connection is a requirement. Ones that cut in and out or are painfully slow will have a hard time.

 

[brazengoat06]

 

[brazengoat06]

 

[brazengoat06]

 

[sed6]

Fantastic pics! Looks like you have a nice place to work on it as well. Can I bring my up and do it there? My seal went out this week.

 

[dawico]

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Very good pics. Thank you.

 

[Ford Mechanic]

Way to go, I see you got the pics up!

 

[Snowtiger]

One word "OUTSTANDING" thank you very very much.

 

[gimpyrobb]

When we did JW's 931, it took FOREVER to bleed the brakes!

 

[brazengoat06]

Way to go, I see you got the pics up!

Yes thanks for the walk through!

 

[acesneights1]

Questions:
Which TM did you use ? I am terrible at navigating them.
Also how did you finally get the retainer out. Did you have to pull the other side ?
Where did you source your parts and were they new or NOS ?
Thanks.

 

[brazengoat06]

Funny enough I tried to go back and find the tm and couldn't lol I used a slide hammer and the screw on adapter of the two jaw puller without the jaws. You insert it into the inside of the tube on the other side of the retainer and pop out the ring. I used no parts

 

[Ford Mechanic]

Funny enough I tried to go back and find the tm and couldn't lol I used a slide hammer and the screw on adapter of the two jaw puller without the jaws. You insert it into the inside of the tube on the other side of the retainer and pop out the ring. I used no parts

Same way I did it

 

[acesneights1]

So looking at this, the knuckle , king pins and Knuckle boot don't need to be messed with if just doing an axle shaft seal ?

 

[Ford Mechanic]

Correct, but if it was mine being I was that far in I would pull the rest of it to inspect and clean the king pins, and replace the boot. I think the oil would contaminate the rubber boot and lead to that failing prematurely. Besides you'll never find a easier time to change that boot, go with a 1 piece since you have it apart. I've put 3 of the zippered ones on in the past 2 years and man they're a pain. I ended up having to sew the big clamp on to the boot to get it installed.

 

[Ford Mechanic]

This needs to be a sticky !!

There is one in the M35 section and it might be a sticky, that is very good with pics. They are really close to the same with the differences being some bolt and nut sizes, a different seal or 2, air brakes verses hydro brakes. I've done both size trucks. Oh yeah the 5 ton parts are much heavier.

 

[Ford Mechanic]

This should give you some insight.

http://www.steelsoldiers.com/showth...and-boots-stepXstep&highlight=front+axle+boot