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#1 |
Senior Member
![]() ![]() Join Date: Jan 2005
Location: CA
Posts: 5,527
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1971 K10 Stepside - Getting a Roller Roadworthy
I've been looking for a 115" wheelbase K10 at a reasonable price and in need of rehabilitation for a while now. I bought this one locally from a woman who owns a body shop. It appears to me that she and her husband were buying and restoring classic trucks as part of their business. Sadly, her husband, who was young, passed away recently, so she is selling off some vehicles. I hauled it home a few days ago.
The truck is stripped down pretty far. It has no engine, transmission, transfer case or driveshafts. The body, however, appears to have no rust holes anywhere, and that's the main reason I decided to go for it. A Chevy Truck Red Book I've got says there were 1438 of these short wheelbase stepside K10s build in 1971, so it's definitely worth keeping. My initial plan is to focus just on getting it roadworthy. I'm also going to undo the crazy high lift it's got right now. It's got a 4" body lift, and the leaf brackets have been welded to the frame with sections of box tubing between them and the frame. I will be grinding all of that off so that the brackets can be reinstalled in their original locations. My plan is to find an NV4500 transmission and an NP205 transfer case. I've got a used l31 Vortec 350 that's in decent condition that I'm going to throw in it. The one bummer is that I'll have to install an electric fuel pump since the l31 block isn't machined for a mechanical pump. It's going to be a bit slow going at first because I have some other projects I need to finish up. The transmission is removed from my '68 stepside right now, and I'm going to be rebuilding the 4L60 transmission in my '89 over the next couple of weeks. I ordered a windshield yesterday so that I can get the cab sealed up before the rain comes. |
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#2 |
Senior Member
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Location: CA
Posts: 5,527
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Re: 1971 K10 Stepside - Getting a Roller Roadworthy
It hasn't been on the road since 2001. The VIN tag, the partial VIN on the frame, the VIN on the SPID and the VIN on the door sticker all match, which will be nice when it comes time to get a VIN verification at the DMV.
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#3 |
Senior Member
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Location: CA
Posts: 5,527
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Re: 1971 K10 Stepside - Getting a Roller Roadworthy
Air brakes
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#4 |
Senior Member
![]() Join Date: Jan 2007
Location: Turlock, CA
Posts: 8,671
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Re: 1971 K10 Stepside - Getting a Roller Roadworthy
I like the truck, and good plan.
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Please help my sister in law with her battle with cancer https://gofund.me/902f6fce Project "C10 Fever" (68 factory black 396 swb) Project "Little Sister" (70 c10 blue original paint refresh) Project "Blue Bomb" (70 c30 blue original paint refresh) SOLD Project "Vitamin C" (71 c10 orange original paint refresh) SOLD |
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#5 |
Senior Member
![]() ![]() Join Date: Jan 2005
Location: CA
Posts: 5,527
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Re: 1971 K10 Stepside - Getting a Roller Roadworthy
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#6 |
Born Psycho
![]() Join Date: Feb 2001
Location: brentwood,cal,usa
Posts: 4,884
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Pat,
my old 69 K10 that i restored back in 95 had a 350, 465, 205 combination with 3:07 gears with 35 inch tires and on flat ground it got 18+ mpg, in the mountains i seldom used 4th gear pulling hills but off road in 4low first gear it would crawl fine. looks like a solid project and a good plan you have.
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jerry moss 72 cheyenne super K20- tilt,tach,vacuum,speedwarning,buckets,shoulder belts,am/fm,tow hooks,bumper guards,toolbox,aux. fuel tank,posi front and rear,plus other goodies!!! SOLD 69 suburban K20-tilt,tach,vacuum,speedwarning,buckets,shoulder belts,am/fm,4 inch all spring lift,4 speed, 14 bolt full floater, dana 44 HD,warn winch,posi front and rear,tow hooks,plus other goodies. 73/80 chevy/gmc K20 SB400,turbo 400,205,tilt,a-c,gas hog. 77 K/5 cheyenne blazer-daily driver/beater. SON HAS IT NOW BRENTWOOD,CALIFORNIA |
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#7 | |
Senior Member
![]() ![]() Join Date: Jan 2005
Location: CA
Posts: 5,527
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Re: 1971 K10 Stepside - Getting a Roller Roadworthy
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#8 |
Registered User
![]() Join Date: Nov 2001
Location: Old Bridge,NJ
Posts: 829
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Re: 1971 K10 Stepside - Getting a Roller Roadworthy
Cool truck, I'm a more of a 67-8 we'll more 67, don't get me wrong I would have all 67- 72 if possible, not one I don't like. 69 and 70 4x4 to me, look the strongest, had a meaner tougher look, well that's me. Nice project you got there it Especially looks killer next to your 98. Caught my attention, had me curious for a spilt second, air brake LOL 🤣🤣.
NGN Nick |
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#9 |
All about them K’s
![]() Join Date: Jun 2014
Location: Land of Entrapment
Posts: 6,394
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Re: 1971 K10 Stepside - Getting a Roller Roadworthy
Nice find! For what it’s worth my K20 has a 5” lift with 4:11’s, 35’s, with a 465 and it runs 65 mph at around 2500. With the assumed numerically lower half ton gears you’ll be even better than that. The shift spacing/RPM drops can kinda suck on the 465 with bigger tires, but with that L31 you should have the torque to do what’s needed. That looks like an excellent start to me. Get rid of the cobbled together crap on the hangers and you’ll be in business. Make sure and check around the steering box for cracks in the frame and also the front crossmember and engine cross member for loose rivets or bolts. The 4x4 trucks are pretty notorious for this. I’d add an ORD steering box brace that ties that area of the frame to the front crossmember, which triangulates the whole area. If the frame is cracked, several places sell the plates to fix it. The swb K10 and blazers have thinner/weaker frames than the lwb K trucks do so they do have the potential to crack more than the lwb K’s. Both my swb K10 and my K20 had cracks in the frame around the steering box.
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Tyler '57 3100 http://67-72chevytrucks.com/vboard/s...d.php?t=813888 '72 K20 Cheyenne: 5” lift, 35’s, front dana 60 blah blah blah… http://67-72chevytrucks.com/vboard/s...d.php?t=662879 ‘69 K10 SWB: 4” lift 33”s… in a million pieces http://67-72chevytrucks.com/vboard/s...d.php?t=805206 '98 Silverado LT K2500HD ECLB Vortec 454/4l80E: 6" lift 315/75/16's |
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#10 | |
Senior Member
![]() ![]() Join Date: Jan 2005
Location: CA
Posts: 5,527
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Re: 1971 K10 Stepside - Getting a Roller Roadworthy
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#11 |
Senior Member
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Location: CA
Posts: 5,527
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Re: 1971 K10 Stepside - Getting a Roller Roadworthy
Looks like it had had some repairs done to it.
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#12 |
Senior Member
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Location: CA
Posts: 5,527
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Re: 1971 K10 Stepside - Getting a Roller Roadworthy
Picked up a windshield yesterday, and received a Precision seal for it. Sprayed the opening black in preparation for install.
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#13 |
All about them K’s
![]() Join Date: Jun 2014
Location: Land of Entrapment
Posts: 6,394
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Re: 1971 K10 Stepside - Getting a Roller Roadworthy
Yep that definitely has had some work done. You have the factory brace so that is a good thing. Neither of my trucks had it. Some got it some didn’t.
My suggestion… strip it down and be really sure of what you’ve got. If it wasn’t repaired correctly those cracks will continue to spread. This is the repairs I did to my K10 last winter just so you can see what it entails. Mine had been poorly repaired in the past and had several cracks that had still spread after the repairs. I drilled both ends of every crack I found and then “V” beveled them as deep as I could without cutting thru the rail then filled them back in with the Mig and flap disked almost smooth; I always try to leave the top a little high when I can so as not to thin the metal out too much. Then once that was done I welded the repair plates over top. Be really sure you get every one. They can be hard to see at times. Mine got ran for a long time with no front crossmember so it was really bad compared to my K20 because of the extra flex and movement in the frame rails. Note the washer welded to the top of the frame where the front crossmember is now bolted. I did this on all the holes for the front crossmember and the engine crossmember. The holes in the washer a drilled ever so slightly undersize of 7/16 so I could ensure a tight fit in with every thing and do my best to eliminate all chances of movement in the frame.
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Tyler '57 3100 http://67-72chevytrucks.com/vboard/s...d.php?t=813888 '72 K20 Cheyenne: 5” lift, 35’s, front dana 60 blah blah blah… http://67-72chevytrucks.com/vboard/s...d.php?t=662879 ‘69 K10 SWB: 4” lift 33”s… in a million pieces http://67-72chevytrucks.com/vboard/s...d.php?t=805206 '98 Silverado LT K2500HD ECLB Vortec 454/4l80E: 6" lift 315/75/16's Last edited by 57taskforce; 08-30-2024 at 02:54 PM. |
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#14 |
Senior Member
![]() ![]() Join Date: Jan 2005
Location: CA
Posts: 5,527
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Re: 1971 K10 Stepside - Getting a Roller Roadworthy
Thanks! I will pull off the steering box and give it a thorough inspection.
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#15 |
All about them K’s
![]() Join Date: Jun 2014
Location: Land of Entrapment
Posts: 6,394
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Re: 1971 K10 Stepside - Getting a Roller Roadworthy
These two cracks actually opened up with a loud “pop” as I was welding another on the side of the rail in an area near by. I ended up wire wheeling the rail to bare metal nearly a foot on both sides of the repair area as much as possible to make sure I got them all. This is the bottom view of the crack circled in black above.
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Tyler '57 3100 http://67-72chevytrucks.com/vboard/s...d.php?t=813888 '72 K20 Cheyenne: 5” lift, 35’s, front dana 60 blah blah blah… http://67-72chevytrucks.com/vboard/s...d.php?t=662879 ‘69 K10 SWB: 4” lift 33”s… in a million pieces http://67-72chevytrucks.com/vboard/s...d.php?t=805206 '98 Silverado LT K2500HD ECLB Vortec 454/4l80E: 6" lift 315/75/16's |
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#16 |
Senior Member
![]() ![]() Join Date: Jan 2005
Location: CA
Posts: 5,527
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Re: 1971 K10 Stepside - Getting a Roller Roadworthy
Dang. Hopefully any cracks in my frame will be visible from the steering box side. It would be a real challenge to remove the plate someone welded to the inside.
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#17 |
Senior Member
![]() ![]() Join Date: Jan 2005
Location: CA
Posts: 5,527
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Re: 1971 K10 Stepside - Getting a Roller Roadworthy
I can see one crack directly forward if the steering box.
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#18 |
All about them K’s
![]() Join Date: Jun 2014
Location: Land of Entrapment
Posts: 6,394
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Re: 1971 K10 Stepside - Getting a Roller Roadworthy
I’d bet it probably goes from one of the steering box holes to that bottom rivet. Definitely look all that over really close. I got my plates for my K20 from ORD and for my K10 I got them here. Same identical parts but 1/2 the cost.
https://www.amazon.com/G-PLUS-Suppor.../dp/B09WMBFC1C
__________________
Tyler '57 3100 http://67-72chevytrucks.com/vboard/s...d.php?t=813888 '72 K20 Cheyenne: 5” lift, 35’s, front dana 60 blah blah blah… http://67-72chevytrucks.com/vboard/s...d.php?t=662879 ‘69 K10 SWB: 4” lift 33”s… in a million pieces http://67-72chevytrucks.com/vboard/s...d.php?t=805206 '98 Silverado LT K2500HD ECLB Vortec 454/4l80E: 6" lift 315/75/16's |
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#19 | |
Senior Member
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Location: CA
Posts: 5,527
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Re: 1971 K10 Stepside - Getting a Roller Roadworthy
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#20 |
Proprietor of Dale's Corner
![]() Join Date: Nov 2012
Location: Vacaville , CA
Posts: 16,128
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Re: 1971 K10 Stepside - Getting a Roller Roadworthy
I'm glad you got it. It looks like decent start..Welcome to the K club!!
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"Some Days Chickens And Some Days Feathers" Dale XNGH ECV Sam Brannan 1004 R.I.P. 67ChevyRedneck R.I.P. Grumpy Old Man |
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#21 |
Senior Member
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Re: 1971 K10 Stepside - Getting a Roller Roadworthy
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#22 |
Proprietor of Dale's Corner
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Re: 1971 K10 Stepside - Getting a Roller Roadworthy
I think so too! Let me know if and when you need help.
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"Some Days Chickens And Some Days Feathers" Dale XNGH ECV Sam Brannan 1004 R.I.P. 67ChevyRedneck R.I.P. Grumpy Old Man |
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#23 |
Senior Member
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Re: 1971 K10 Stepside - Getting a Roller Roadworthy
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#24 |
Proprietor of Dale's Corner
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Location: Vacaville , CA
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Re: 1971 K10 Stepside - Getting a Roller Roadworthy
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"Some Days Chickens And Some Days Feathers" Dale XNGH ECV Sam Brannan 1004 R.I.P. 67ChevyRedneck R.I.P. Grumpy Old Man |
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