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Old 04-25-2008, 03:17 PM   #1 (permalink)
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68-72 4x4 conversion

tried looking up a domain search through google for this convertion and had no luck finding anything.
have a 69 c10 2WD looking to go 4x4.
i have a 73-87 44front to swap in. can i just put the spring brackets in and
hang the front and make a drag link for now and swap in a 14blt rear with springs and brackets?
looking for a build link or advice. thanks.
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Old 04-25-2008, 03:31 PM   #2 (permalink)
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You will need to change front crossmembers to a 4wd one. also, is your truck a leaf sprung rear?
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Old 04-25-2008, 04:56 PM   #3 (permalink)
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67-72chevytrucks.com
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Old 04-25-2008, 05:44 PM   #4 (permalink)
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As noted above, the 67-72 site is great. Do you have a coil spring truck or a leaf spring truck? This is one of those projects that has been undertaken quite a few times, but usually if you have to ask the question, maybe you should just buy a 4x4? A 73-87 complete and running and re-doing the cab and bed mounts would be the easiest.
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Old 04-27-2008, 10:39 AM   #5 (permalink)
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Quote:
Originally Posted by senatorfrisky View Post
67-72chevytrucks.com
x2, but before you go there, do a sirch. Because this very question gets asked in the 4x4 forum there AT LEAST bi-weekly. Although they are more tolerant of stupid posts than at this site, don't just go post the same thing there.
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Old 04-28-2008, 12:42 PM   #6 (permalink)
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thank you guys.
i'll be looking into the chevy site soon.
i have a coil sprung rear c10. i have considered doing a later model body swap, just have the 3/4 front on hand and wondered what i would be undertaking. didn't seem too hard to me. i would opt for the body swap but i have not found a truck in the price range i'm looking for.

no body swap threads or other 4x4 conv. threads? what do i need to do to specify my search, i would rather not waist your time.
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Old 05-02-2008, 03:21 AM   #7 (permalink)
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I did this on my 64 C10 long bed. It was a pain in the butt. I'd advise having a donor 4x4. Mine was a 77 K10.

Front:
You can unbolt the crossmember from your C10, and junk it. You will need to swap in a 4x4 cross member, or do what I did, and brace that area with plate steel, and I used a home made motor plate. I torched the front perches off the K10 and bolted them in the C10. I made my own rear perches. I used 52 inch springs up fornt. Gave it about 5-6 inches of lift with extended shackles. Custom shock mounts. The steering is gonna be the hard part. I had to drill and mount the 4x4 box, and swap in the K10 steering column. This will take some fab work because the 77's column isn't a direct swap. The wiring is different too. I made a bracket, and chased/spliced my wires. If you have a single pot brake resevoir swap in a dual pot and power brakes. Again be prepared to make a bracket so it'll mount to the fire wall. It was easier for me to stick with manual brakes because a brake booster wouldn't fit with the big block. You will have to make new brake lines too... front and rear.

Transfer case:
My C10 had a SM420. I kept that in the stock location. I mounted a divorced 205 19 inches aft of the transmission. I made my own bracket for that. I had a Jack shaft made to go between the trans and t-case. My C10 had dual drive shafts. I removed them and used a custom rear shaft. Mounted the stock shifter with a custom bracket.

Rear:
Trailing arm suspension mounts the rear axle over the arms. I swapped in the K10 axle under the arms. This requires you to cut some material off the arms to get the U-bolts to fit. I kept the stock coil springs in. The truck sat level. You could easily do a 4 link on these trucks. I didn't because I didn't have the means. I cut the panhard bar bracket off the C10 axle and welded it to the K10 axle and it worked fine. Custom shock mounts, and you're done.

There isn't much tech on it, but here's a link to my cardomain page. Atleast you can see it after the 4x4 conversion.
http://www.cardomain.com/ride/501393
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Old 05-02-2008, 07:51 AM   #8 (permalink)
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Personally I don't think it is a hard swap. I have done several over the years. HOWEVER it is very time consuming and labor intensive, especially with you having the coil spring rear suspension. I do have a couple of parts that I have built to make the front leaf spring swap a lot easier, but it requires a 3'' wide custom front spring
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Old 05-02-2008, 05:33 PM   #9 (permalink)
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just curious, KWTMECH, whyd you change from coils to leaf sprung in the rear? woudlnt you gain some free lift with a arm/over setup?
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Old 05-02-2008, 06:29 PM   #10 (permalink)
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When you do the 4x swap on a 2x frame with the flat front stock springs, you still end up with about 3-4'' of lift (over what would be stock) without doing anything else. If you have coils in the rear and try to match the height it gets pretty squirrely, even with a redesigned panhard bar and double shocks. Leafs are much easier also. Never done a shorty though in the 68-72. Did a short bed 76 about 10 years ago, changed it to 3/4 ton also. Still see it around town now and then.
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Old 05-02-2008, 09:46 PM   #11 (permalink)
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Originally Posted by KWTMECH View Post
Personally I don't think it is a hard swap. I have done several over the years. HOWEVER it is very time consuming and labor intensive, especially with you having the coil spring rear suspension. I do have a couple of parts that I have built to make the front leaf spring swap a lot easier, but it requires a 3'' wide custom front spring
I made this swap hard on myself. I did it in my driveway, without a welder of my own. When I needed a welder, I had to take my parts to someone else. I took the truck to the hobby shop on base to get things started, but I had to take it home that night. You should have seen me dragging this thing home from the hobby shop after I was done with the arm over swap. I did the rest in my drive way because my house on base doesn't have a garage. I was able to take it back to the hobby shop after it was driveable. I could use their welder and lift to finish up the last details. I won't do a project like this without a garage and welder minimum! A tranny jack would have helped alot too.

I did like how the trailing arm set-up worked. Easier to convert, and it works just as well if not better.
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Old 05-03-2008, 12:33 AM   #12 (permalink)
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Note to self:

Buy and welder and learn how to weld.


Check out www.diy4x.com

They have some leaf spring brackets and such for the 67-72 trucks that might help your cause....
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