Timmer,

Attached below are the pics I found that I think you are looking for???

Includes the general rear brake exploded view and general rear axle for a 1-1/2 Ton (basic brakes/axle diagrams less the 2 speed pumpkin as they are same for all Series 4000-6000 trucks from what I could find) and the exploded view of the "vacuum shifted" 2 speed axle pumpkin (used the vacuum shifted pic as that's what was spec'd in the GM Heritage site for your 1949 Chevrolet Truck data).

I added the brake diagram in case it may help you get yours disassembled. wink

Let me know if there are other diagrams or details I may be able to try and help with (should probably go in a new thread to keep this one about your original topic). thumbs_up

Dan
Attachments
1946-54 Vacuum shifted 2 speed differential (exploded view).JPG (325.33 KB, 33 downloads)
2 Speed vacuum shifted differential exploded view
BLANK.jpg (227 Bytes, 31 downloads)


Last edited by Gdads51; 08/01/2023 2:53 PM.

~ Dan
1951 Chevy 3 window 3100
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"My Grandpa Carl's Truck and How it Became Mine"
1966 Chevelle (Wife's Hot Rod) | 2013 Chevy Silverado (Current daily driver)
US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)