C10 to C20 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

lutherb69 · 02-09-2007, 12:26 AM

Hello to all. I was trying to find out can you change a C10 to a C20. I have a 68 C10 2wd suburban and have trying to get a C10 truck 2wd or a K5 blazer on sure if 2wd or 4wd. If I get the truck I need it to pull the suburban and if the blazer need the suburban to pull the blazer.

Thanks for your time and help
Lou

GREASEMONKEY72 · 02-09-2007, 02:05 AM

the difference in a c10 and a c20 is the frame and suspension but theres no difference in bodies

**special-K** · 02-09-2007, 02:15 AM

Yes,you can change a C/10 to a C/20:Springs,rear axle,and steering knuckles-out(bearings/brakes)

Aarons72s · 02-09-2007, 11:30 AM

If it is coils all the way around here is how you do it. This is the stock bolt in way.

1. Coil spring rear axle your choice of dana60 or ho52.
2. 3/4 ton panhard bar for the axle
3. 3/4 ton springs.
4. up front 3/4 ton springs
5. 71-87 3/4 ton lower a arm
6. 3/4 ton upper and lower ball joints
7. 3/4 ton 71-72 inner and outter tie rod ends
8. 71-87 3/4 ton spindales rotors and such.
9. 71-72 3/4 ton master cylinder and power brake booster with brackets.
10. 71-72 front 3/4 ton brake lines.

I think I listed everything. Mount the upper ball joints in the stock 1/2 ton upper a arms, as the 3/4 ton a arms wont work do to the size of there pivot shaft but the 3/4 ton ball joints mount fine in the stock 1/2 ton a arm.
Hope this helps.

**Hart_Rod** · 02-09-2007, 12:32 PM

Will a C-10 front crossmember bolt into a C-20 frame?

krue · 02-09-2007, 04:05 PM

Yeah

Longhorn Man · 02-09-2007, 04:25 PM

the frames are 99% the same.

lutherb69 · 02-09-2007, 06:06 PM

Thanks for the info

extd56 · 02-09-2007, 06:23 PM

Quote:

Originally Posted by Aarons72s

If it is coils all the way around here is how you do it. This is the stock bolt in way.

1. Coil spring rear axle your choice of dana60 or ho52.
2. 3/4 ton panhard bar for the axle
3. 3/4 ton springs.
4. up front 3/4 ton springs
5. 71-87 3/4 ton lower a arm
6. 3/4 ton upper and lower ball joints
7. 3/4 ton 71-72 inner and outter tie rod ends
8. 71-87 3/4 ton spindales rotors and such.
9. 71-72 3/4 ton master cylinder and power brake booster with brackets.
10. 71-72 front 3/4 ton brake lines.

I think I listed everything. Mount the upper ball joints in the stock 1/2 ton upper a arms, as the 3/4 ton a arms wont work do to the size of there pivot shaft but the 3/4 ton ball joints mount fine in the stock 1/2 ton a arm.
Hope this helps.

What do you have to do to convert a 69 3/4 ton to disc brakes? Can you use the 71-72 spindles with the 69 a-arms wiht the 71-71 inner and outer tie rod ends?

Aarons72s · 02-10-2007, 12:52 PM

You will need items 6- 71-72 ball joints, 8- 71-87 spindles, half of 9- you will need a 71-72 master cylinder, 10- 71-72 brake lines and hoses. Yes the spindles will work with your a arms. But you will need a 71-72 center link to use the 71-72 tie rods, your tie rods wont work with the disc spindles. They make an adapter for the 1/2 ton tie rods to use a combo of the 67-70 and 71-72 tie rod ends that might work for you but am not sure. There was a few people that talked about this adapter but dont rember who it was or who makes it. Me I would just find the 71-72 center link off of either 1/2 or 3/4 ton truck. Hope this helps.
Aaron

02-09-2007, 12:26 AM	#1
lutherb69 Registered User Join Date: Oct 2005 Location: Langley AFB, Va (Army) Posts: 124	C10 to C20 Hello to all. I was trying to find out can you change a C10 to a C20. I have a 68 C10 2wd suburban and have trying to get a C10 truck 2wd or a K5 blazer on sure if 2wd or 4wd. If I get the truck I need it to pull the suburban and if the blazer need the suburban to pull the blazer. Thanks for your time and help Lou

02-09-2007, 02:05 AM	#2
GREASEMONKEY72 Registered User Join Date: Aug 2006 Location: Bakersfield,CA Posts: 7,893	Re: C10 to C20 the difference in a c10 and a c20 is the frame and suspension but theres no difference in bodies __________________ -steven Alte Seele S.S. "Allison" '72 C/10 LWB 350SB/TH350 - DD PITBULL IS NOT A CRIME

02-09-2007, 02:15 AM	#3
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,861	Re: C10 to C20 Yes,you can change a C/10 to a C/20:Springs,rear axle,and steering knuckles-out(bearings/brakes) __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

02-09-2007, 11:30 AM	#4
Aarons72s Registered User Join Date: Apr 2006 Location: oklahoma Posts: 10,670	Re: C10 to C20 If it is coils all the way around here is how you do it. This is the stock bolt in way. 1. Coil spring rear axle your choice of dana60 or ho52. 2. 3/4 ton panhard bar for the axle 3. 3/4 ton springs. 4. up front 3/4 ton springs 5. 71-87 3/4 ton lower a arm 6. 3/4 ton upper and lower ball joints 7. 3/4 ton 71-72 inner and outter tie rod ends 8. 71-87 3/4 ton spindales rotors and such. 9. 71-72 3/4 ton master cylinder and power brake booster with brackets. 10. 71-72 front 3/4 ton brake lines. I think I listed everything. Mount the upper ball joints in the stock 1/2 ton upper a arms, as the 3/4 ton a arms wont work do to the size of there pivot shaft but the 3/4 ton ball joints mount fine in the stock 1/2 ton a arm. Hope this helps.

02-09-2007, 12:32 PM	#5
Hart_Rod ************* Join Date: Apr 2005 Location: Pensacola, FL Posts: 17,837	Re: C10 to C20 Will a C-10 front crossmember bolt into a C-20 frame? __________________ Rob - https://www.instagram.com/hart_rod_c10 As Iron Sharpens Iron, So One Man Sharpens Another. Proverbs 27:17 FOR SALE: DBW pedal bracket - http://67-72chevytrucks.com/vboard/s...d.php?t=651123 FOR SALE: Hood Brackets http://67-72chevytrucks.com/vboard/s...d.php?t=679945 1987 Silverado SWB - 34.5K original miles http://67-72chevytrucks.com/vboard/s...d.php?t=801834 1969 SuperBurb - http://67-72chevytrucks.com/vboard/s...d.php?t=200387 1968 Farm truck - http://67-72chevytrucks.com/vboard/s...d.php?t=358692 1968 SWB - http://67-72chevytrucks.com/vboard/s...d.php?t=551258 1948 Chevy - http://67-72chevytrucks.com/vboard/s...=122164&page=3

02-09-2007, 04:05 PM	#6
krue Designated A-hole! Join Date: Mar 2003 Location: South Mississippi Posts: 36,450	Re: C10 to C20 Yeah __________________ "If it ain't broke, fix it 'til it is!" Being stupid ain't illegal. We're Still Debt Free Except for the House!!! www.daveramsey.com 70 GMC SWB Stepside project "Green Booger" soon to be 6.0l/4l80e 93 S-10 "Poppaw's Truck"

02-09-2007, 04:25 PM	#7
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Re: C10 to C20 the frames are 99% the same.

02-09-2007, 06:06 PM	#8
lutherb69 Registered User Join Date: Oct 2005 Location: Langley AFB, Va (Army) Posts: 124	Re: C10 to C20 Thanks for the info

02-10-2007, 12:52 PM	#10
Aarons72s Registered User Join Date: Apr 2006 Location: oklahoma Posts: 10,670	Re: C10 to C20 You will need items 6- 71-72 ball joints, 8- 71-87 spindles, half of 9- you will need a 71-72 master cylinder, 10- 71-72 brake lines and hoses. Yes the spindles will work with your a arms. But you will need a 71-72 center link to use the 71-72 tie rods, your tie rods wont work with the disc spindles. They make an adapter for the 1/2 ton tie rods to use a combo of the 67-70 and 71-72 tie rod ends that might work for you but am not sure. There was a few people that talked about this adapter but dont rember who it was or who makes it. Me I would just find the 71-72 center link off of either 1/2 or 3/4 ton truck. Hope this helps. Aaron



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