I’m so smart

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

WFO

Full Access Member
Joined
Jan 6, 2017
Posts
3,696
Reaction score
5,052
Location
Texas Panhandle
First Name
Dan
Truck Year
1986
Truck Model
K20
Engine Size
350
These any help?

You must be registered for see images attach
You must be registered for see images attach
You must be registered for see images attach
You must be registered for see images attach
Those are almost too pretty to cover up and use.
 

Disco

Full Access Member
Joined
Feb 13, 2022
Posts
123
Reaction score
172
Location
Texarkana, TX
First Name
Mike
Truck Year
1978
Truck Model
Big 10
Engine Size
350
I didn't read everything so this may be covered but here's the acronym BOB big on back. The rear shoe is the long shoe
That actually helps a lot! Thanks! I use mnemonics like that all the time (over a decade wrenching and I still tell myself "righty-tighty").

These drums are a bigger PITA than I remember and than I have ever done. how do you stretch a spring you can't even flex?! You need to be an octopus to do the job, as everything keeps trying to fall off while I'm trying to install springs.
I am so putting a disc brake conversion on the future to-do list. I should be able to scrape together enough by the time these brakes need replaced...
 

Disco

Full Access Member
Joined
Feb 13, 2022
Posts
123
Reaction score
172
Location
Texarkana, TX
First Name
Mike
Truck Year
1978
Truck Model
Big 10
Engine Size
350
Btw, y’all, I have looked. My Big10 does NOT have adjuster holes in either the backing plates or the drums, nor does it have un-punched holes. Solid plate, solid drum.
 

ali_c20

Full Access Member
Joined
Sep 20, 2016
Posts
1,309
Reaction score
1,876
Location
Austria
First Name
Alexander
Truck Year
1974, 1979
Truck Model
C20, K5
Engine Size
350, 350
Earlier models don't have the adjuster hole, my 79k5 no hole, a friends 77c10 no hole, his 86 c10 has the hole.
I drilled holes in my backing plates, tapped them and put short bolts in to keep the dirt out.
 

Goldie Driver

Full Access Member
Joined
Mar 19, 2018
Posts
4,043
Reaction score
6,634
Location
Houston, Texas
First Name
Britt
Truck Year
1980
Truck Model
GMC K1500 Suburban
Engine Size
350
Earlier models don't have the adjuster hole, my 79k5 no hole, a friends 77c10 no hole, his 86 c10 has the hole.
I drilled holes in my backing plates, tapped them and put short bolts in to keep the dirt out.

Aftermarket drums dont seem to come with the knock out plugs, so it could be that is the reason for your above examples.

The drilled hole and bolts strikes me as a stroke of genius - well played!

:waytogo:
 

Grit dog

Full Access Member
Joined
May 18, 2020
Posts
6,988
Reaction score
12,259
Location
Auburn, Washington
First Name
Todd
Truck Year
1986, 1977
Truck Model
K20, C10
Engine Size
454, 350
Overkill. Everything was blasted and then replated. The springs were repainted to match the factory colors. I'm 100% certifiable. lmao
Dang dude.
Do you have clear brake drums to show off that setup?
 

Disco

Full Access Member
Joined
Feb 13, 2022
Posts
123
Reaction score
172
Location
Texarkana, TX
First Name
Mike
Truck Year
1978
Truck Model
Big 10
Engine Size
350
No you didn't. No pics, it didn't happen
Believe me. It happened. There’s no pics because I was QUITE done with these drums.

Disc conversion kit on the list of future things to do…
 

Disco

Full Access Member
Joined
Feb 13, 2022
Posts
123
Reaction score
172
Location
Texarkana, TX
First Name
Mike
Truck Year
1978
Truck Model
Big 10
Engine Size
350
It took long enough that my brand new wheel cylinders are rusty. Lol
 

Soundmound

Supporting Member
Supporting Member
Joined
Feb 15, 2022
Posts
1,809
Reaction score
5,467
Location
North Central Washington
First Name
Dave
Truck Year
1984
Truck Model
Scottsdale
Engine Size
305
Disc conversion kit on the list of future things to do…
Don't do it, it's a trap! LOL. I was eager to swap to rear disc also, but having seen enough negative threads here on the topic, I am pulling an about face.
 

DoubleDingo

Full Access Member
Joined
Jul 3, 2012
Posts
11,264
Reaction score
17,217
Location
Right where I am
First Name
Bagoomba
Truck Year
1981
Truck Model
81-C20 Silverado Camper Special-TH400-4.10s
Engine Size
Carb'ed Vortec 350
Believe me. It happened. There’s no pics because I was QUITE done with these drums.

Disc conversion kit on the list of future things to do…
It's a rule, I didn't write it...lol...

Take a pic of some rear tire skid marks showing they work...lol...
 

Matt Lutz

Junior Member
Joined
Jul 15, 2021
Posts
9
Reaction score
17
Location
Bastrop
First Name
Matt
Truck Year
Lutz
Truck Model
1500
Engine Size
250 4.1L
Thanks for the great pics! I was trying to put the adjuster bolt mech in the wrong spot and of course I was having issues! Instead of putting it on the vertical piece I was trying to put it on the horizontal piece. I have great pictures of the top of the system from before I disassembled it but did not get a picture of the bottom. I actually woke up wondering "How the hell does that adjuster stay on?" Now I know!
 

Latest posts

Forum statistics

Threads
44,205
Posts
951,605
Members
36,341
Latest member
tmssldn
Top