1971 k20 badmax - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Rednwhitec20 · 07-08-2017, 02:42 AM

I bought a 71 c20 in 2014. Loved the truck but I was always wishing I had a 4x4. It was too nice of a truck to mess with so I sold it to my stepdad with plans to get it back later on and have money for my build.

I had previously had a thread on here but I failed to keep it updated so I am going to redo it here.

I bought a pretty rough 1971 K20 with plans to do a decent frame off with a nice, reliable power plant. Ideas flew around and I ended up with a Duramax. Here's the build my friends.

Rednwhitec20 · 07-08-2017, 10:01 AM

So then came the work. A bit rusty

Rednwhitec20 · 07-08-2017, 11:14 AM

I fixed my frame rust and slapped some paint on her. Rebuilt the axle and put her together. Then she went to the corner for a drive line removal.

Rednwhitec20 · 07-08-2017, 11:47 AM

Out she came along with stock springs. I traded for a 6" skyjacker. She then went to get her first round of bodywork, which I wasn't impressed with.

Rednwhitec20 · 07-10-2017, 01:08 AM

Then I bought my engine, trans, and transfer case along with the brains. I cleaned and slapped a fast paint job on the engine, then I sent my harness and computers off to make it all work. Harness was simplified by Ken Wolkens, and it looks pretty good. My ECM and TCM received tuning from Pela Motorsports. And some more bodywork.

**Dieselwrencher** · 07-11-2017, 04:11 PM

Your truck has progressed a long ways! Congrats!

Rednwhitec20 · 07-11-2017, 11:10 PM

Some more body work and then we sat the engine and tranny in. Thank you sir!

Rednwhitec20 · 07-11-2017, 11:14 PM

Then she was headed off to a friends shop until it drives. I bought a HP Dana 60 that still needs to be installed. I also found a nice tailgate. I then decided I needed a beefier cross member. So I had a friend make this animal.

Rednwhitec20 · 07-11-2017, 11:21 PM

I snagged up my favorite, Welds! Wrapped in 37's. I also got a somewhat economical vehicle. Then bought a used t-case and had it rebuilt and slapped it in. Wiring has begun, and they put in my super beefy crossmember.

Rednwhitec20 · 07-11-2017, 11:25 PM

And this is where I am currently in the build. I went ahead and bought a 14 bolt 11.5" one ton rear so I had more meat out back and I got discs on all 4 corners.

new intake as well! Intercooling piping is on its way along with my hog of a driveshaft. I think I'm going to man up and spend some money on A/C this weekend.

**Dieselwrencher** · 07-12-2017, 07:42 PM

Very nice! You will not regret doing the AC now!

Rednwhitec20 · 07-12-2017, 07:57 PM

Quote:

Originally Posted by Dieselwrencher

Very nice! You will not regret doing the AC now!

Oh I know! Now that I have a car that finally has AC, I am hooked!

Driveshaft is in the truck but I forgot to take a picture. 1480 u-joint at the case and a 1410 u-joint at the rear. Pretty beefy. The inter cooler plumbing is in as well. Steering column is about to be put in. Getting a new rag joint. Then once the AC gets wired I will have some piping for my turbskie.

**Dieselwrencher** · 07-13-2017, 02:24 PM

Skip the rag joint and go with a Jeep XJ shaft to eliminate the rag joint IMO.

Rednwhitec20 · 07-14-2017, 08:45 AM

Quote:

Originally Posted by Dieselwrencher

Skip the rag joint and go with a Jeep XJ shaft to eliminate the rag joint IMO.

Well, he's starting to get moving on it and I have no extra money.

v30crewcab · 07-14-2017, 07:28 PM

you can get the xj shaft for $10-15. best mod ever

Rednwhitec20 · 07-14-2017, 07:40 PM

Quote:

Originally Posted by v30crewcab

you can get the xj shaft for $10-15. best mod ever

May I ask what it does?

Rednwhitec20 · 07-14-2017, 10:15 PM

Well I ordered my AC today through vintage air! Im pretty excited about it. Can someone buy my Dana 44 so I can get this 60 built

v30crewcab · 07-16-2017, 05:24 PM

the xj shaft gives you nice ujoints on both ends, for dirt cheap. eliminates the slack of the rubber disc.

Rednwhitec20 · 07-16-2017, 09:36 PM

Quote:

Originally Posted by v30crewcab

the xj shaft gives you nice ujoints on both ends, for dirt cheap. eliminates the slack of the rubber disc.

Are they bolt in?

DieselSJ · 07-17-2017, 01:03 PM

Quote:

Originally Posted by Rednwhitec20

Are they bolt in?

Yep.

Rednwhitec20 · 07-17-2017, 01:41 PM

Quote:

Originally Posted by DieselSJ

Yep.

Well I have a friend with 3 totaled xj's so I'll go that route. Thank you for the help!

**Dieselwrencher** · 07-24-2017, 05:12 PM

If he wants to sell another let me know. I need one for my 76. I stole it off and gave it to a friend. Now it is steerless.

Rednwhitec20 · 07-28-2017, 08:30 PM

Quote:

Originally Posted by Dieselwrencher

If he wants to sell another let me know. I need one for my 76. I stole it off and gave it to a friend. Now it is steerless.

If I can convince him to sell me any first.

Does anyone have a cheaper was to draw fuel from a 1/2" line other than a sump?

Rednwhitec20 · 07-30-2017, 10:24 PM

Intercooler piping mocked up with stainless. Blue tape is where she'll be welded, but both of his Tig machines are down for now. Until Lincoln can get him a new machine it'll probably be connected by boots and clamps.

**Dieselwrencher** · 07-31-2017, 03:22 PM

I'd see if you can find some one to weld them first. How far from Pittsburgh Kansas are you? There's a board member that lives there that could probably weld these for you. What kind of tank are you using? A draw straw is a lot cheaper and can be obtained a lot of places. I use 1/2" ones in all my builds most times.

07-08-2017, 02:42 AM	#1
Rednwhitec20 Registered User Join Date: Jun 2014 Location: Princeton Kansas Posts: 235	1971 k20 badmax I bought a 71 c20 in 2014. Loved the truck but I was always wishing I had a 4x4. It was too nice of a truck to mess with so I sold it to my stepdad with plans to get it back later on and have money for my build. I had previously had a thread on here but I failed to keep it updated so I am going to redo it here. I bought a pretty rough 1971 K20 with plans to do a decent frame off with a nice, reliable power plant. Ideas flew around and I ended up with a Duramax. Here's the build my friends. Attached Images __________________ 1971 C20 Daily, Built 350/700R4 1971 K20 Project, LLY Duramax, 5 speed Allison, and 8 in lift on 37x13.50s K20 Build Last edited by Rednwhitec20; 07-08-2017 at 02:44 AM. Reason: Rename

07-08-2017, 10:01 AM	#2
Rednwhitec20 Registered User Join Date: Jun 2014 Location: Princeton Kansas Posts: 235	Re: 1971 k20 badmax So then came the work. A bit rusty Attached Images __________________ 1971 C20 Daily, Built 350/700R4 1971 K20 Project, LLY Duramax, 5 speed Allison, and 8 in lift on 37x13.50s K20 Build

07-08-2017, 11:14 AM	#3
Rednwhitec20 Registered User Join Date: Jun 2014 Location: Princeton Kansas Posts: 235	Re: 1971 k20 badmax I fixed my frame rust and slapped some paint on her. Rebuilt the axle and put her together. Then she went to the corner for a drive line removal. Attached Images __________________ 1971 C20 Daily, Built 350/700R4 1971 K20 Project, LLY Duramax, 5 speed Allison, and 8 in lift on 37x13.50s K20 Build

07-08-2017, 11:47 AM	#4
Rednwhitec20 Registered User Join Date: Jun 2014 Location: Princeton Kansas Posts: 235	Re: 1971 k20 badmax Out she came along with stock springs. I traded for a 6" skyjacker. She then went to get her first round of bodywork, which I wasn't impressed with. Attached Images __________________ 1971 C20 Daily, Built 350/700R4 1971 K20 Project, LLY Duramax, 5 speed Allison, and 8 in lift on 37x13.50s K20 Build

07-10-2017, 01:08 AM	#5
Rednwhitec20 Registered User Join Date: Jun 2014 Location: Princeton Kansas Posts: 235	Re: 1971 k20 badmax Then I bought my engine, trans, and transfer case along with the brains. I cleaned and slapped a fast paint job on the engine, then I sent my harness and computers off to make it all work. Harness was simplified by Ken Wolkens, and it looks pretty good. My ECM and TCM received tuning from Pela Motorsports. And some more bodywork. Attached Images __________________ 1971 C20 Daily, Built 350/700R4 1971 K20 Project, LLY Duramax, 5 speed Allison, and 8 in lift on 37x13.50s K20 Build

07-11-2017, 04:11 PM	#6
Dieselwrencher 6>8 Plugless........ Join Date: Sep 2007 Location: Prairie City, Ia Posts: 17,142	Re: 1971 k20 badmax Your truck has progressed a long ways! Congrats! __________________ Ryan 1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread 1972 GMC Sierra Grande Longhorn 4x4 1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed 1972 C10 Suburban Custom Deluxe 1969 Chevy milk truck 1971 Camaro RS 5.3 BTR STG3 Cam Super T10 1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project *Tired of spark plugs? Check this out.*

07-11-2017, 11:10 PM	#7
Rednwhitec20 Registered User Join Date: Jun 2014 Location: Princeton Kansas Posts: 235	Re: 1971 k20 badmax Some more body work and then we sat the engine and tranny in. Thank you sir! Attached Images __________________ 1971 C20 Daily, Built 350/700R4 1971 K20 Project, LLY Duramax, 5 speed Allison, and 8 in lift on 37x13.50s K20 Build

07-11-2017, 11:14 PM	#8
Rednwhitec20 Registered User Join Date: Jun 2014 Location: Princeton Kansas Posts: 235	Re: 1971 k20 badmax Then she was headed off to a friends shop until it drives. I bought a HP Dana 60 that still needs to be installed. I also found a nice tailgate. I then decided I needed a beefier cross member. So I had a friend make this animal. Attached Images __________________ 1971 C20 Daily, Built 350/700R4 1971 K20 Project, LLY Duramax, 5 speed Allison, and 8 in lift on 37x13.50s K20 Build

07-11-2017, 11:21 PM	#9
Rednwhitec20 Registered User Join Date: Jun 2014 Location: Princeton Kansas Posts: 235	Re: 1971 k20 badmax I snagged up my favorite, Welds! Wrapped in 37's. I also got a somewhat economical vehicle. Then bought a used t-case and had it rebuilt and slapped it in. Wiring has begun, and they put in my super beefy crossmember. Attached Images __________________ 1971 C20 Daily, Built 350/700R4 1971 K20 Project, LLY Duramax, 5 speed Allison, and 8 in lift on 37x13.50s K20 Build

07-11-2017, 11:25 PM	#10
Rednwhitec20 Registered User Join Date: Jun 2014 Location: Princeton Kansas Posts: 235	Re: 1971 k20 badmax And this is where I am currently in the build. I went ahead and bought a 14 bolt 11.5" one ton rear so I had more meat out back and I got discs on all 4 corners. new intake as well! Intercooling piping is on its way along with my hog of a driveshaft. I think I'm going to man up and spend some money on A/C this weekend. Attached Images __________________ 1971 C20 Daily, Built 350/700R4 1971 K20 Project, LLY Duramax, 5 speed Allison, and 8 in lift on 37x13.50s K20 Build Last edited by Rednwhitec20; 07-11-2017 at 11:56 PM.

07-12-2017, 07:42 PM	#11
Dieselwrencher 6>8 Plugless........ Join Date: Sep 2007 Location: Prairie City, Ia Posts: 17,142	Re: 1971 k20 badmax Very nice! You will not regret doing the AC now! __________________ Ryan 1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread 1972 GMC Sierra Grande Longhorn 4x4 1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed 1972 C10 Suburban Custom Deluxe 1969 Chevy milk truck 1971 Camaro RS 5.3 BTR STG3 Cam Super T10 1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project *Tired of spark plugs? Check this out.*

07-13-2017, 02:24 PM	#13
Dieselwrencher 6>8 Plugless........ Join Date: Sep 2007 Location: Prairie City, Ia Posts: 17,142	Re: 1971 k20 badmax Skip the rag joint and go with a Jeep XJ shaft to eliminate the rag joint IMO. __________________ Ryan 1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread 1972 GMC Sierra Grande Longhorn 4x4 1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed 1972 C10 Suburban Custom Deluxe 1969 Chevy milk truck 1971 Camaro RS 5.3 BTR STG3 Cam Super T10 1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project *Tired of spark plugs? Check this out.*

07-14-2017, 07:28 PM	#15
v30crewcab Registered User Join Date: Apr 2012 Location: Chatt Tn Posts: 980	Re: 1971 k20 badmax you can get the xj shaft for $10-15. best mod ever __________________ 88 military v30 crewcab shortbed 5.9 cummins, nv4500, 205 86 k30, 89 diesel burb, 76 gmc pathfinder 71 longbed 5.3 4l80 http://67-72chevytrucks.com/vboard/s...d.php?t=522535

07-14-2017, 10:15 PM	#17
Rednwhitec20 Registered User Join Date: Jun 2014 Location: Princeton Kansas Posts: 235	Re: 1971 k20 badmax Well I ordered my AC today through vintage air! Im pretty excited about it. Can someone buy my Dana 44 so I can get this 60 built __________________ 1971 C20 Daily, Built 350/700R4 1971 K20 Project, LLY Duramax, 5 speed Allison, and 8 in lift on 37x13.50s K20 Build

07-16-2017, 05:24 PM	#18
v30crewcab Registered User Join Date: Apr 2012 Location: Chatt Tn Posts: 980	Re: 1971 k20 badmax the xj shaft gives you nice ujoints on both ends, for dirt cheap. eliminates the slack of the rubber disc. __________________ 88 military v30 crewcab shortbed 5.9 cummins, nv4500, 205 86 k30, 89 diesel burb, 76 gmc pathfinder 71 longbed 5.3 4l80 http://67-72chevytrucks.com/vboard/s...d.php?t=522535



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07-24-2017, 05:12 PM	#22
Dieselwrencher 6>8 Plugless........ Join Date: Sep 2007 Location: Prairie City, Ia Posts: 17,142	Re: 1971 k20 badmax If he wants to sell another let me know. I need one for my 76. I stole it off and gave it to a friend. Now it is steerless. __________________ Ryan 1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread 1972 GMC Sierra Grande Longhorn 4x4 1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed 1972 C10 Suburban Custom Deluxe 1969 Chevy milk truck 1971 Camaro RS 5.3 BTR STG3 Cam Super T10 1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project *Tired of spark plugs? Check this out.*

07-30-2017, 10:24 PM	#24
Rednwhitec20 Registered User Join Date: Jun 2014 Location: Princeton Kansas Posts: 235	Re: 1971 k20 badmax Intercooler piping mocked up with stainless. Blue tape is where she'll be welded, but both of his Tig machines are down for now. Until Lincoln can get him a new machine it'll probably be connected by boots and clamps. Attached Images __________________ 1971 C20 Daily, Built 350/700R4 1971 K20 Project, LLY Duramax, 5 speed Allison, and 8 in lift on 37x13.50s K20 Build

07-31-2017, 03:22 PM	#25
Dieselwrencher 6>8 Plugless........ Join Date: Sep 2007 Location: Prairie City, Ia Posts: 17,142	Re: 1971 k20 badmax I'd see if you can find some one to weld them first. How far from Pittsburgh Kansas are you? There's a board member that lives there that could probably weld these for you. What kind of tank are you using? A draw straw is a lot cheaper and can be obtained a lot of places. I use 1/2" ones in all my builds most times. __________________ Ryan 1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread 1972 GMC Sierra Grande Longhorn 4x4 1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed 1972 C10 Suburban Custom Deluxe 1969 Chevy milk truck 1971 Camaro RS 5.3 BTR STG3 Cam Super T10 1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project *Tired of spark plugs? Check this out.*

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