Building a K5 Blazer with a C10 SWB Frame - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**dec010974** · Yesterday, 02:02 PM

Hello my fellow Trucksters. As the title reads, I am attempting to build a K5 Blazer with a 1970 C10 SWB frame. My research states that if I remove 11 inches from the frame and modify/fabricate the rear tub mounts, I should be fine. Please chime in. Any information on this subject is greatly appreciated.

**dagnabbitt** · Yesterday, 02:48 PM

As far as I know, that is right. 115 inch frame cut to 104.

I hate it when I ask a question on here and people try to deter me from what I plan to do, so forgive me: why not take a LWB and cut it down instead?

I don't know about your neck of the woods but I would think that a SWB is pretty valuable.

If you already have it you could probably trade it for things you need.

**dec010974** · Yesterday, 05:21 PM

@dagnabitt, as with life, I approach everything with a grain of salt. I hear you loud and clear but the SWB fell in my lap. I know the condition of what I have so I thought that would be the best start for me. I also own a 1968 c10, a running/driving truck, LS2/TR6060, Dakota digital gauges, 4 wheel disc brakes, but it’s just a shop truck. It’s not the prettiest but it works. A Midlife crisis kicked and now I want to build a K5 Blazer. So as I narrow down my plan of attack, I am taking notes and gathering parts. So far, I have replaced all the cross members and all the body mounts on this frame. My goal is to build the rolling chassis and buy the K5 tub. In preparation to building the chassis, I want to cut/weld, sand blast/paint the frame but a buddy said he would only cut the frame if he had in his possession the K5 Tub. As I understand his point, I am ready to cut/weld and move forward. Hopefully others will chime in with advice. Thanks for chiming in @dagnabbitt

**dagnabbitt** · Yesterday, 05:50 PM

I totally get it! Please post pics!

I have a cut down 67 K20 and have been kicking the idea around myself.

**dec010974** · Yesterday, 06:08 PM

The Parts that I have collected so far are Gen 4 LS 6.0L engine, C10 rear differential with 3.73 positive traction, 4L60E transmission, C10 SWB frame. I have replaced the core support mounts and cross member, Cab mounts, rear frame cross mount, Trailing Arm cross member, Added C-Notch, and frame stiffener. The next step is to cut or not to cut. I have been looking at Blazer tubs to purchase but I want to stay away from body work and rust repair

**jerry moss** · Yesterday, 09:48 PM

sounds like a cool project, you've got the know how and ambition, I say go for it. please post some pics as you go.

**'68OrangeSunshine** · Today, 12:18 AM

If you want to build a K/5 Blazer, you will need a Dana 44 Front axle, NP205 Transfer case, and a Kay 5, 10 or 20 frame.

Unless your project is a C/5 Blazer, which is what I think you want.

[Without the Four Wheel Drive parts, it's not a KAY/FIVE].

Hey Moderators, do You think this thread should be moved to the Blazer/Jimmy Forum?

Yesterday, 02:02 PM	#1
dec010974 Senior Member Join Date: Oct 2012 Location: Miami, Florida Posts: 920	Building a K5 Blazer with a C10 SWB Frame Hello my fellow Trucksters. As the title reads, I am attempting to build a K5 Blazer with a 1970 C10 SWB frame. My research states that if I remove 11 inches from the frame and modify/fabricate the rear tub mounts, I should be fine. Please chime in. Any information on this subject is greatly appreciated.

Yesterday, 02:48 PM	#2
dagnabbitt Senior Member Join Date: Dec 2014 Location: Edmonton Alberta Posts: 1,383	Re: Building a K5 Blazer with a C10 SWB Frame As far as I know, that is right. 115 inch frame cut to 104. I hate it when I ask a question on here and people try to deter me from what I plan to do, so forgive me: why not take a LWB and cut it down instead? I don't know about your neck of the woods but I would think that a SWB is pretty valuable. If you already have it you could probably trade it for things you need. __________________ DAVE Edmonton, Alberta 1959 Apache 1967 K20 1968 C20 1970 C10 1972 GMC 2500 1981 C10

Yesterday, 05:21 PM	#3
dec010974 Senior Member Join Date: Oct 2012 Location: Miami, Florida Posts: 920	Re: Building a K5 Blazer with a C10 SWB Frame @dagnabitt, as with life, I approach everything with a grain of salt. I hear you loud and clear but the SWB fell in my lap. I know the condition of what I have so I thought that would be the best start for me. I also own a 1968 c10, a running/driving truck, LS2/TR6060, Dakota digital gauges, 4 wheel disc brakes, but it’s just a shop truck. It’s not the prettiest but it works. A Midlife crisis kicked and now I want to build a K5 Blazer. So as I narrow down my plan of attack, I am taking notes and gathering parts. So far, I have replaced all the cross members and all the body mounts on this frame. My goal is to build the rolling chassis and buy the K5 tub. In preparation to building the chassis, I want to cut/weld, sand blast/paint the frame but a buddy said he would only cut the frame if he had in his possession the K5 Tub. As I understand his point, I am ready to cut/weld and move forward. Hopefully others will chime in with advice. Thanks for chiming in @dagnabbitt

Yesterday, 05:50 PM	#4
dagnabbitt Senior Member Join Date: Dec 2014 Location: Edmonton Alberta Posts: 1,383	Re: Building a K5 Blazer with a C10 SWB Frame I totally get it! Please post pics! I have a cut down 67 K20 and have been kicking the idea around myself. __________________ DAVE Edmonton, Alberta 1959 Apache 1967 K20 1968 C20 1970 C10 1972 GMC 2500 1981 C10

Yesterday, 06:08 PM	#5
dec010974 Senior Member Join Date: Oct 2012 Location: Miami, Florida Posts: 920	Re: Building a K5 Blazer with a C10 SWB Frame The Parts that I have collected so far are Gen 4 LS 6.0L engine, C10 rear differential with 3.73 positive traction, 4L60E transmission, C10 SWB frame. I have replaced the core support mounts and cross member, Cab mounts, rear frame cross mount, Trailing Arm cross member, Added C-Notch, and frame stiffener. The next step is to cut or not to cut. I have been looking at Blazer tubs to purchase but I want to stay away from body work and rust repair

Yesterday, 09:48 PM	#6
jerry moss Born Psycho Join Date: Feb 2001 Location: brentwood,cal,usa Posts: 4,903	Re: Building a K5 Blazer with a C10 SWB Frame sounds like a cool project, you've got the know how and ambition, I say go for it. please post some pics as you go. __________________ 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

Today, 12:18 AM	#7
'68OrangeSunshine Senior Member Join Date: Feb 2002 Location: Tucson, AZ USA Posts: 7,364	Re: Building a K5 Blazer with a C10 SWB Frame If you want to build a K/5 Blazer, you will need a Dana 44 Front axle, NP205 Transfer case, and a Kay 5, 10 or 20 frame. Unless your project is a C/5 Blazer, which is what I think you want. [Without the Four Wheel Drive parts, it's not a KAY/FIVE]. Hey Moderators, do You think this thread should be moved to the Blazer/Jimmy Forum? __________________ Every 25 years I like to rebuild that 292, whether it needs it or not.



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