The Stovebolt Site Forums The Parking Lot Big Bolts 1968 C30 1.5 ton

I recently picked up this truck as a project. It currently runs and kinda drives. The parking brake works flawlessly! The rest of the brakes not so much. So I will need to tackle that job in the near future.

This truck has been off the road for 24 years and has only traveled 9k miles in the last 30 years.

This truck is equipped with a 327, mated to an SM465 which turns an H110 rear axle.
I had never heard of hydro vac brakes before a couple weeks ago and so I’ve been learning little bits here and there. The hydrovac booster under the passenger side of the cab appears to be in great shape, I’m wondering if the brakes were serviced in the early 90s, because the booster and the brake lines look to be in excellent condition.
There are also signs that the rear axle has been opened up at some point(red silicone gasket sticking out).

I want to put this truck back on the road.
It needs a full tune up on everything
Needs the gas tank cleaned
Needs the brakes fixed
Needs shocks
And much more!!!

Let me know what you guys think.

Are wheel cylinders and brake shoes for this axle/hub setup really unobtainable?

Why does my SPID sheet say I have a 133” wheelbase but I actually have a 157” wheelbase?

Thanks!

Looks like a good project! Glad to have you back.

Hey T. Can you rotate your images that are sideways? If you need with that, just holler.

Model CE-31403 is a Cab Chassis with 157" wb per my books, maybe someone typing got the wheel base wrong at the assembly plant (133 would be the more common wb to type in)???

As for brakes, I bet you can get everything you need from your local NAPA and since it's been off road for so long, I'd replace the entire system. Steel and flex lines, master cylinder and wheel cylinders. The lines fail from the inside out, so they may look good but be a mess on the inside

You can check the Hydrovac to see if it's still working. On your first start up of the day, put medium leg pressure on the brake pedal and start the engine. You should feel the pedal fade a little as the Hydrovac gets vacuum, if so it's working. Post a picture so we know which Hydrovac you have...the old style need about 1oz of sewing machine oil once a year to keep the leather seal soft and flexible.

Mike B

Thanks

I don’t know how to rotate the pics sorry.

Thank you very much for this information!
Very interesting about the wheelbase discrepancy!

I will be asking my local Napa about brakes on Monday!

Thanks for the tip on checking the hydrovac function! I will test that out shortly, I assume I will need to properly bleed the brakes first for that to work. I will try to bleed them tomorrow.

Thanks for the feedback!
I fully appreciate any info anyone us on this truck.

T,

If nobody pipes in, I'll give it a try tomorrow.

Pics of the hydrovac

Nice looking truck.
One question--it does look like a C-30, but I always thought a C-30 was a 1 Ton. Am I missing something here, or has this truck maybe been modified some?

Thanks.
From what I understand it is a 1 ton with a 2 ton rear axle with accompanying front hub and brake stystem, sort of making it a 1.5 ton truck.
I believe this was a factory option from 1946-1968 on the cab and chassis 157” wheelbase trucks.

Please anyone correct me if I’m wrong.

look on the bottom of you post for the edit link and click on it, click on the picture you want to edit, then click on the rotate button on the top bar.