1980 C10 Owner

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Ricko1966

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Joined
Apr 11, 2017
Posts
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9,172
Location
kansas
First Name
Rick
Truck Year
1975
Truck Model
c20
Engine Size
350
Are you losing brake fluid? Was the master dry when you got the truck? Just wondering if your front to rear brake line has rusted out,it's a common problem
 

AlabamaDan

Junior Member
Joined
Nov 3, 2024
Posts
23
Reaction score
35
Location
Alabama
First Name
Dan
Truck Year
1980
Truck Model
C10
Engine Size
350
Alright! Got the brakes working and she's roadworthy - sorta. After replacing the master cylinder, I ended up bleeding the brakes alone using the tube into a jar trick. It also allowed me to flush out about a pint of dirty and nasty stuff. I just kept pumping until the fluid coming out was clear or clearer anyway.

I took her for a drive to the gas station to fill her up and then across the street to the car wash. Much better. Now, I said "sorta" roadworthy. On the way home I noticed the front headlights were crap and the dash lights worked for a second and then nothing...

So, I replaced bought some new Sylvania Sealed Bulbs and changed them out. Who in the world decided that four of the six screws holding the bezel on would be torx head and the other two should be an alan head!!!! Was it like this from the factory? So frustrating. And, I think the alan head is metric! Finally got the new headlights installed.

Now, the dash lights... they were working a little and then went out. Wouldn't this be the dimmer switch probably?
 

HotWheelsBurban

Full Access Member
Joined
Mar 31, 2023
Posts
2,528
Reaction score
6,054
Location
Houston, Texas
First Name
Carol
Truck Year
1990
Truck Model
R2500 Suburban
Engine Size
350
Alright! Got the brakes working and she's roadworthy - sorta. After replacing the master cylinder, I ended up bleeding the brakes alone using the tube into a jar trick. It also allowed me to flush out about a pint of dirty and nasty stuff. I just kept pumping until the fluid coming out was clear or clearer anyway.

I took her for a drive to the gas station to fill her up and then across the street to the car wash. Much better. Now, I said "sorta" roadworthy. On the way home I noticed the front headlights were crap and the dash lights worked for a second and then nothing...

So, I replaced bought some new Sylvania Sealed Bulbs and changed them out. Who in the world decided that four of the six screws holding the bezel on would be torx head and the other two should be an alan head!!!! Was it like this from the factory? So frustrating. And, I think the alan head is metric! Finally got the new headlights installed.

Now, the dash lights... they were working a little and then went out. Wouldn't this be the dimmer switch probably?
Yes I remember, we had a '79 rental pickup for a few months in summer of '79, for our parts store. We had to replace one of the headlights and that's when we discovered that had changed. IIRC the headlight bezel is a torx T15 and the stainless steel retaining ring on the sealed beams is still Phillips head #2 or #1. The '81 s changed it even more, because you had to pop the hood to remove two of the headlight bezel retaining screws. That Sierra had the big #6052 square sealed beams with the flat face; that get cracks just looking at em funny. So I swapped a few of em out ....
We backdated the '79 Burb to the '73-'78 bezels; Dad wanted to make it into a '77 spec truck as it was not stock when we got it.
 

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