What's wrong with this picture?

[Turbocharged400sbc]

the new bendix and meritor/etc disc stuff is supposed to be worlds ahead of the old disc systems even keeping ABS function too iirc

 

[Wolfman]

Duh! Everybody knows this... Just like everybody knows how to rebuild a carburetor!

Last time I rebuilt a carb, my engine caught fire....

 

[P40E]

Ladies and gentlemen, here's your definition of a lineman parts changer. Same thing day in and day out! Don't dare get out of the comfort zone.

This drum set up was the norm for gm/gmc heavy duty fleet delivery trucks forever (and actually on older passenger cars too) until the last 25 years or so . Very low cost . This was the parts changers gravy work.

 

[Turbocharged400sbc]

....unless lack of maintenance left you with seized adjusters, and a 1/4" rust ring to try and get off

 

[P40E]

Cut the pins from the back side and let the shoes fall inward .

 

[Turbocharged400sbc]

when i think of how long i sat there with a ball carbide burr bit grinding away those pins behind 8" tall leaf packs & add on overloads lol.....i think i still have my crapsman socket i cut and modified to install the wheel cylinder retainer with crap in the way...

 

[P40E]

There are certain tricks. One is to take an old screw driver and pry on the head so the stem of the pin is visible . Then get your air cut off wheel tool in there and go to work.

Another is to do that again with the screw driver . Then take your cutoff tool and cut an X or a # in the head of the pin so the ears fall off. If you do it right the pin will fall through the hole .

Or do that with the screw driver and hit the head of pin with a acetylene torch , but be careful not to hit the backing plate.

The op's picture shows a very small gm shoe setup. Most rear shoes on larger hd trucks are much larger , but have the same principle and similar hardware without the parking brake stuff .

 

[Turbocharged400sbc]

it was about 30seconds at most per pin with the carbide, and it worked even where there was no other access.

i do remember how often fuckers would bitch about a 20-30$ hardware kit.

but until we end up with electric actuated disc brakes or some eddy current shit disc brakes will never have as low of drag as the drum

 

[P40E]

This gm shoe kit is also used on the back of some manual transmissions like the muncie 4 speeds . Except not with the wheel cyl. . Just the stuff for the parking brake. To hold the driveline when using p brake .

 

[Ti28]

There are certain tricks. One is to take an old screw driver and pry on the head so the stem of the pin is visible . Then get your air cut off wheel tool in there and go to work.

Another is to do that again with the screw driver . Then take your cutoff tool and cut an X or a # in the head of the pin so the ears fall off. If you do it right the pin will fall through the hole .

Or do that with the screw driver and hit the head of pin with a acetylene torch , but be careful not to hit the backing plate.

The op's picture shows a very small gm shoe setup. Most rear shoes on larger hd trucks are much larger , but have the same principle and similar hardware without the parking brake stuff .

It's off a 1 ton van...

 

[P40E]

To show the mass use gm had installed these on almost every car with similar sets going way back , this is a set up on a 55 chevy Bel Air . P1010016_2 Photo by awsum55 | Photobucket

 

[Turbocharged400sbc]

i love the dana/spicer drum design- over the bendix

gm's single spring was a damned good design...just a pita to service for alot of folks