Seals outside the rear axle

[wokri]

Hello,
what do I have to do to change the seals on the rear axle where the rear wheel is located?
On your answer could you discribe it step by step?
Ask
Wolfgang

 

[coilover]

Jack up and put jack stands under rear end.
Take off wheels and brake drums
Take cover off back of differential---10 bolts
Remove set bolt that runs through the spider gear pin---about 3 inches long and has a small hex head usually 5/16 to 7/16 inch
Remove pin and square spacer block
Push in on axle and remove horseshoe shaped "C" clip
Pull axle out
Remove seal and install new one

 

[Bill Hanlon]

Even's instructions are correct for a 1/2 ton (3100/3200) truck. If your's is a 3/4 ton let us know.

 

[wokri]

It's a Chevy 3600, 3/4 ton truck.

 

[Bill Hanlon]

3600 uses a H-050 rear axle which was used on 3/4 and Chevy and GMC trucks at least into the late 1950s. I don't know where to find a maintenance manual for an early 50s Chevy truck, so I'm referencing an on-line 1957 GMC Maintenance Manual which has good coverage of the H-072, heavy duty version but mechanically the same as the H-050. I checked this on-line copy of the '57 GMC Maintenance Manual against my paper version of the 1952 GMC Maintenance Manual and they agree everywhere I have referenced below.

Start reading here: 1955 - 1959 GMC Trucks Maintenance Manual - Models 100 - 500

The good stuff (rear hub and bearing replacement) is here: 1955 - 1959 GMC Trucks Maintenance Manual - Models 100 - 500
When the manual refers to a "type A,B, or C" yours is a type A (all series 150 and 250).

There is a reference to section 2 for axle shaft removal. Look here 1955 - 1959 GMC Trucks Maintenance Manual - Models 100 - 500 for removal of H-072 axle which comes out the same way as your H-050.

 

[wokri]

Thank you Bill!

 

[wokri]

I've find the manual: 1954 Chevrolet Truck Shop Manual
I've dismantled the wheel housing.
Here are some pictures: Bilder | Unterrichts- und Übungsmaterialien