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-   -   My Ride: '70 Chev CST/20 (http://67-72chevytrucks.com/vboard/showthread.php?t=118139)

Jakes-66-K10 09-02-2004 09:35 AM

My Ride: '70 Chev CST/20
 
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Alright, here is my second - most recent ride. See also this thread: http://67-72chevytrucks.com/vboard/s....php3?t=118134

I'm trying to do the same thing with this thread, mostly to show pictures of what I am talking about and also pick some brains of the very knowledgable people on this board.

Here are the pics of this truck. It seems the CST/20 is not very common?

Jakes-66-K10 09-02-2004 09:38 AM

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Alright, as you can see there is rust and some dents, but nothing too terrible:

Jakes-66-K10 09-02-2004 09:41 AM

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Here are some of the things the truck came with that are a little unique. It has two saddles tanks on each side of the bed, sure looks to have come stock but I could be wrong. Also, it came missing it's tailgate but inplace had a rail/gear system to hoist a camper onto the bed.

Jakes-66-K10 09-02-2004 09:44 AM

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Here is the drivetrain. This is the engine I am removing and either going to rebuild or sell. If you look close you can see a rod poking through the oilpan. Also, can anyone identify what rear end this is?

Jakes-66-K10 09-02-2004 09:45 AM

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Last pics, just for fun. Here are the two "projects" and my daily driver. =)

dubie 09-02-2004 09:48 AM

2 projects eh, that Bug doesn't look like much of a project :D your yellow 66 pickup looks like it would make a more worthy dialy driver :D That truck is sweeeeeeeeeeeeet

cheyenne10 09-02-2004 10:07 AM

rearend
 
rearend looks to be dana 60 model. If truck was originally 396BB truck might be 3.54 ratio, if 350 SB it often was 4.10 gears.

Canadian694x4 09-02-2004 06:58 PM

Nice CST/20! Looks like a great start, and your Yellow truck is Saweet!

krue 09-02-2004 09:15 PM

Two good looking projects!

Jakes-66-K10 09-09-2004 07:24 PM

Ok, an interesting thing happened. I pulled this dead engine out along with the tranny, and it seems I have a small block 400 not a 350. My fender emblem indicates that it should have come with a 350, so the previous owner must have swapped it out.

Any advice on whether I should look into rebuilding this? I have my eyes on the GM 290HP 350 crate engine, I'd love to be able to sell this engine or at least parts of it to get something with a warranty.

68w/sbc406 09-09-2004 07:59 PM

try and find some one that wants to build a 383, then you have a buyer for your crank :)

neonlarry 09-10-2004 12:14 AM

I would take it apart and see if its any good first. If the block is good, get a aftermarket crank and some 5.7'' rods and pistons to go with them and build a 400. if it broke a rod, the crank is probably junk, but you never know.

longhorn71 09-10-2004 12:44 AM

very nice trucks. the saddle tanks on your c-20 are just like mine I REMOVED mine because they mounted them through the box wood. wood rotted and were going to fall off

Jakes-66-K10 09-10-2004 12:09 PM

neonlarry, one of the rods have broken but I don't know how to tell if the crank is good or not. I'll probably just try to find someone local that wants to rebuilt this and I'll sell it real cheap.

New question though, I'm taking some disc brakes from a junkyard '71. Does anyone know if I will need new A-arms to put the new spindles on this '70, or would it bolt right up? Sure wish the search feature was working so people like me aren't asking the same questions over and over...

68w/sbc406 09-10-2004 08:04 PM

you dont need the newer style a arms. the stock will work. just get all pieces you can and remember what year you are swaping too cause you will need to maintain that year through out

LUV2XCLR8 09-10-2004 09:27 PM

WHEELS LOOK KINDA DIFFERENT, WTF ARE THEY :confused:

Jakes-66-K10 09-12-2004 12:42 AM

I have no idea, wish I did so I could get matching tires. =) I'll probably sell them for cheap and just get 4 Outlaw rims if I can find a good price.

OK, next update: I have taken the TH350 to a tranny shop and it needs to be rebuilt. But, instead of spending $450 on a rebuild I'd much rather spend that towards a 700r4 (plan on using alot on highways). I'll need a core if I get a 700r4. So, anyone that wants a TH350 to rebuild or use as a core, or trade straight across for a 700r4 core let me know.

Thanks guys!

FRENCHBLUE72 09-12-2004 09:57 AM

Look's like it has the rust in all the common spot's ... My truck was that color year's ago not a bad color if you buff it out ....

LUV2XCLR8 09-12-2004 10:50 AM

O I C, JUST THE FRONT 2 ARE ALUMINUM. ;)

Quote:

Originally Posted by vortexofpain
I have no idea, wish I did so I could get matching tires. =) I'll probably sell them for cheap and just get 4 Outlaw rims if I can find a good price.

OK, next update: I have taken the TH350 to a tranny shop and it needs to be rebuilt. But, instead of spending $450 on a rebuild I'd much rather spend that towards a 700r4 (plan on using alot on highways). I'll need a core if I get a 700r4. So, anyone that wants a TH350 to rebuild or use as a core, or trade straight across for a 700r4 core let me know.

Thanks guys!


68w/sbc406 09-12-2004 05:21 PM

are the front 2 newer style chevy wheels? kinda look like it with out the center cap

70C/20CHEV 09-12-2004 07:48 PM

Looks a lot like my 70 Chev C/20, different color though. Been looking for a pair of those camper mirrors and arms in the stainless or chrome if someone has a set or maybe your not going to use ones from this truck :bowtie: . My cab is just coming out of the body shop and I just got the 350 V-8 from the machine shop. Hope to start on front end sheetmetal and then the box. I added power steering and power disc brakes from a 1972 C/20.

68w/sbc406 09-12-2004 08:26 PM

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yeah those wheels are off of a newer truck. the pic is of a 2001 3/4 ton 2wd 2500HD

Tx Firefighter 09-12-2004 08:31 PM

Late model HD Chevy truck wheels. Dude at my fire station has a 2002 1500HD 4 wheel drive with those wheels.

Jakes-66-K10 09-13-2004 03:01 PM

Thanks for the rim identification guys, that's awesome! I've looked around a bit online to try to find a name, part number, or anything so I can order two rear wheels. Any ideas about where to order these?

70C/20Chev, I sent you a private message about these camper mirrors. I'm not gonna use them.

FormerMember 09-13-2004 04:01 PM

Quote:

Originally Posted by vortexofpain
Thanks for the rim identification guys, that's awesome! I've looked around a bit online to try to find a name, part number, or anything so I can order two rear wheels. Any ideas about where to order these?

70C/20Chev, I sent you a private message about these camper mirrors. I'm not gonna use them.


Saw about 40 pair on Ebay...

Jakes-66-K10 09-13-2004 04:42 PM

What are they called though, so I can search ebay for them?

Jakes-66-K10 09-15-2004 04:43 PM

Also, do you need a specific porportioning valve for disc brakes? I'm swapping front ends with a '71 and it has discs, master cylinder, and valves but no booster. So, I found a booster in a junk yard today that can bolt up to my master cylinder, but i'm not sure if the porp. valves will work with them both.

FormerMember 09-15-2004 04:54 PM

http://motors.search-desc.ebay.com/C...chedZ2QQsotrZ2

Warbones 09-15-2004 05:03 PM

Nice truck, looks to be pretty clean. I always have liked the color green too.

Tx Firefighter 09-15-2004 05:34 PM

Quote:

Originally Posted by vortexofpain
Also, do you need a specific porportioning valve for disc brakes? I'm swapping front ends with a '71 and it has discs, master cylinder, and valves but no booster. So, I found a booster in a junk yard today that can bolt up to my master cylinder, but i'm not sure if the porp. valves will work with them both.

Same prop valve for power and manual, as long as it's disc brake truck, it will work.

70C/20CHEV 09-16-2004 04:10 AM

I agree with tx firefighter on brake proportioning valve, as long as its a disc brake proportioning valve you should be ok. After checking over 30 different parts catologs it doesnt seem to matter if 1/2 or 3/4 ton and 1971 and 1972 are the same. My used disc brake set up had the proportioning valve with it (3/4 ton). My 1/2 ton parts doner truck appears to have the same proportioning valve on it.

Jakes-66-K10 09-28-2004 04:05 PM

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Does anyone know if they make rebuild kits for master cylinders? Here's a shot of my original, and then the new cylinder that came from the '71 donor with discs. It's not a master cylinder I've ever seen before, with a weird ruber gasket inside. Wondering if I can rebuild this or have to use it as a core to order a new one?

Jakes-66-K10 09-28-2004 04:10 PM

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And last question for today, here is a powerbooster that was from a 71 or 72 blazer. I haven't seen rebuild kits for these either, wondering if there is a way to know if it will hold pressure or not. I can see what I think has been a wasp nest inside the vacuum port, do you think it's safe to flush this out somehow and still use it?

Thanks everyone!

68w/sbc406 09-28-2004 08:17 PM

i think i read that master cylinders are not worth rebuilding, cause they are only 25 bucks. cant help with the booster i have the same question.

chickenwing 09-28-2004 08:28 PM

[Sure wish the search feature was working so people like me aren't asking the same questions over and over...[/QUOTE]

I think he is gettin close. I just searched the FAQ's!!!

chickenwing 09-28-2004 08:31 PM

Quote:

Originally Posted by vortexofpain
Thanks for the rim identification guys, that's awesome! I've looked around a bit online to try to find a name, part number, or anything so I can order two rear wheels. Any ideas about where to order these?

70C/20Chev, I sent you a private message about these camper mirrors. I'm not gonna use them.

2nd the ebay thing. I bought a brand new set of 4 with tires for $400.

chickenwing 09-28-2004 08:35 PM

Quote:

Originally Posted by vortexofpain
What are they called though, so I can search ebay for them?

Should have read all of these and posted once. sorry. Search ebay motors for "chevy 8 lug" that should narrow it down for you. Watch this at least a week before you buy. Sometimes after a rush of buyers the sales go flat. That's how I got mine so cheap.

cheyenne10 09-29-2004 12:53 AM

master cylinder
 
Master looks identical to my original one in 72 C20 with power discs. New one I bought for $18 looks identical (had $8 core also which I got back). Almost certain that is right master for c20/k20 with front Power discs. Your booster looks rough. I know there are services that rebuild these. Last one I read up on required parts to be dipped/stripped of finish and grime before sending in to rebuild. I am still reseaching the competition on rebuilt boosters. I am looking to refinish one I have and replace exterior boots to make look new, no luck on parts source yet. I am just finishing up replacing master and booster with restored one I bought for another truck a year ago. It was on shelf and saved me time finding parts for used one. I will try to restore myslef and use on 2nd truck. I am going to start a post on problems during install looking for bleeding help.

Good luck. Power brakes are way better than manual ones!!

Jakes-66-K10 09-29-2004 02:08 PM

Where are you guys buying Mast. Cylinders for so cheap??

FormerMember 09-29-2004 02:22 PM

Kragen's here.

Master Cyl was 18.00

Booster was 72.00

Same ones you have pictures of.

Go 71 3/4 ton when you buy them...


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