Scooter's 1970 K10 Build

[Scooter72!]

Hello all just wanted to share my build with you. I have a k10 swb frame (not sure what year) but it has a 1970 c20 cab on it. Currently a manual but I am going to make it an automatic not sure which tranny to use either 700r4 or 4l60e I want good freeway cruising speed. I have 3.07 gears so if I have 33 inch tires I should be about 2200 rpms at 60mph. What is a good rpm? I have a 350 bored 40 over hopefully I will make enough power at the bottom end. Any thoughts? Also where can I get new leafs? And what shocks do you recommend? Should I get my axles rebuilt?

[Scooter72!]

[JayJayB]

1) do you have disc brakes on it?

2) Your recipe for highway cruising is tasty!

[Scooter72!]

I have disc on front drums on rear. I do want to upgrade brakes though. 4 wheel disc?

[JayJayB]

if I had the rear disc, I would sell them.

[Scooter72!]

So is there a paticular reason why drums are better then disc on the rear?

[Scooter72!]

Disassembly

[Scooter72!]

I got the fenders and bed off some of the bolts I had to cut because they were so rusty.

Does anyone have an opinion on the brakes they sell a whole kit 4 disc lines and booster jay was saying he doesn't like rear disc.

Is there a reason why disc are not as good as drum in rear?

[Scooter72!]

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Got the cab off today.
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[Scooter72!]

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[Justin@EntropyRad]

Frame looks decent too!

[Scooter72!]

Originally Posted by Justin@EntropyRad

Frame looks decent too!

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[Scooter72!]

I noticed a couple things strange about my frame at least three that I can see.

What do you guys see?

[the hippie mechanic]

Originally Posted by Scooter72!

I noticed a couple things strange about my frame at least three that I can see.

What do you guys see?

The boxed frame rails in the front with the giant hunk of square tube used as a cross brace and it looks like you're missing the second set of supports for the bed right behind the cab. Plus the support between the motor mounts is gone. That's sort of important for the structural integrity of the frame.

[Scooter72!]

I'm not sure why they boxed the front part of the frame but it was a little work to get the brake and fuel lines out. Not sure how I am going to run the new ones. I think I might just drill a few access holes at least it adds strength. The front square tube doesn't seem to interfere with anything so I think I will leave it for extra strength. I'm not sure why they cut the cross member out under motor unless it was a clearance issue.

Questions
1) not sure what bed supports I am missing does anyone have a pic?
2) any suggestions on missing cross member probably just fab my own if I had a picture and some measurements to go off

A donor truck would be nice

[the hippie mechanic]

Originally Posted by Scooter72!

Questions
1) not sure what bed supports I am missing does anyone have a pic?
2) any suggestions on missing cross member probably just fab my own if I had a picture and some measurements to go off

Sorry to leave you hanging Scooter, I will post a picture of the bed support I'm talking about tomorrow. Hope the project is going well!

[Scooter72!]

Originally Posted by the hippie mechanic

Sorry to leave you hanging Scooter, I will post a picture of the bed support I'm talking about tomorrow. Hope the project is going well!

Been sand blasting and wire wheeling The frame. Taking forever! Will get some more pics up when I make some progress.
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[jp's67]

Hey Scooter, welcome aboard. Make sure you check out the FAQ section and search function. This site is loaded with good info. Subscribed.

[Ol Blue K20]

Where is the cross member under the motor mounts

[Scooter72!]

Where can i get some affordable axles perhaps with possi?
Does anyone have any thoughts or recommendations on what i should do for axles and brakes?

[Scooter72!]

I'm contemplating on selling my truck does anyone now what I should ask price wise? It has a 350 bored 30 over, pretty much all there except tail gate. It's just in pieces though.

[swamp rat]

Whats wrong with the axles you have??

Per your question on Drum VS Disks in the back, i think the argument is that the rear drums are more than adequate, look at the surface area of the shoe contact VS the disks and pads to get an idea, i think some folks think it will add to reduced stopping ability with the disks but not too convinced.

If you have an Eaton HO52 then you have an axle that parts are starting to get hard to find, your shoe's can be re soled, i think spring kits may be the same as a C30 but don't quote me, the info has been posted here before. I converted to rear disks because i didn't want to have to worry about finding rear brake parts, i used front calipers and rotors for a 72 (same year as my truck) But using the front calipers leaves you without an E-break.

If you have not already be sure to check out the 4X4 section and the 4X4 projects and builds page.

[Scooter72!]

I sand blasted the frame and ordered some patch panels for the cab.
It needs rockers, cab corners and front and rear cab supports.

[Scooter72!]

A few pics

[Scooter72!]

My patch panels from gmc pauls came today.
I am replacing cab corners.
Front and rear cab floor supports.
I also got the outer four inch floor extensions which has the inner rocker backer attached. This is the way to go if the rust extends into your floor a bit.
And of course I ordered the outer rockers.
The parts look high qualityy hopefully they fit good.
I spent quite a while trying to seperate the front cab floor support the welds are very hard to break.
What methods have people used in the past?