70 k20 front frame crossmember replacement - The 1947 - Present Chevrolet & GMC Truck Message Board Network

richardwilken · 12-01-2004, 03:44 AM

are all 67-72 front frame croosmembers the same? at some point in this trucks life someone had hooked the end of a chain (i believe) to it and tried to pull something that obviously would not move. where the rivets go through the crossmember and the frame, the crossmember steel has been torn. what crossmembers from what years will fit? are k10 and k20's the same? what could i expect to pay for one of these?

BobS · 12-01-2004, 10:44 AM

They are all the same for 1/2 and 3/4 ton. I put a crossmember from a 68 C-10 into a 70 K-20, it bolted right in. As far as cost goes, I wouldn't think much more than 5-10 bucks, they're not hard to find.

Bob

ryanroo · 12-01-2004, 11:40 AM

i think i paid like 50$ shipped from california to iowa iirc
Ryan

richardwilken · 12-02-2004, 06:34 PM

thanks for the quick response guys. i have a 71 c20 parts truck that i need to pick up and was wondering if it would fit. Is it better to bolt it in with grade 8 bolts or get some factory style rivets?

longhorn71 · 12-02-2004, 08:36 PM

grade 8 bolts are good

BobS · 12-02-2004, 11:27 PM

and much easier to install

12-01-2004, 03:44 AM	#1
richardwilken Registered User Join Date: Sep 2003 Location: clifton, IL Posts: 114	70 k20 front frame crossmember replacement are all 67-72 front frame croosmembers the same? at some point in this trucks life someone had hooked the end of a chain (i believe) to it and tried to pull something that obviously would not move. where the rivets go through the crossmember and the frame, the crossmember steel has been torn. what crossmembers from what years will fit? are k10 and k20's the same? what could i expect to pay for one of these? __________________ 69 chevy 1/2 ton 2wd 72 GMC 1/2 ton 2wd

12-01-2004, 10:44 AM	#2
BobS Senior Member Join Date: May 2001 Location: West Central Minnesota Posts: 568	They are all the same for 1/2 and 3/4 ton. I put a crossmember from a 68 C-10 into a 70 K-20, it bolted right in. As far as cost goes, I wouldn't think much more than 5-10 bucks, they're not hard to find. Bob __________________ V-6....only GMC Trucks have it! 62 GMC W5000 NAPCO-V6 65 GMC 2500 NAPCO Panel-V6 66 GMC 1000-V6 66 GMC 1500-V6 67 GMC K1500-SBC (originally a KM-V6) 68 GMC C1500-V6 68 GMC C1500-V6 68 GMC Suburban C2500 70 Chevy K20-SBC 71 Chevy C30 Longhorn-SBC 72 GMC Suburban C1500-BBC 72 Chevy C10-SBC 72 GMC C5500-ToroFlow Diesel

12-01-2004, 11:40 AM	#3
ryanroo Senior Member Join Date: Apr 2004 Location: sw colorado Posts: 2,720	i think i paid like 50$ shipped from california to iowa iirc Ryan __________________ 72 K20 12v build 72 K20 "parts truck" A place for your diesel swap questions

12-02-2004, 06:34 PM	#4
richardwilken Registered User Join Date: Sep 2003 Location: clifton, IL Posts: 114	thanks for the quick response guys. i have a 71 c20 parts truck that i need to pick up and was wondering if it would fit. Is it better to bolt it in with grade 8 bolts or get some factory style rivets? __________________ 69 chevy 1/2 ton 2wd 72 GMC 1/2 ton 2wd

12-02-2004, 11:27 PM	#6
BobS Senior Member Join Date: May 2001 Location: West Central Minnesota Posts: 568	and much easier to install __________________ V-6....only GMC Trucks have it! 62 GMC W5000 NAPCO-V6 65 GMC 2500 NAPCO Panel-V6 66 GMC 1000-V6 66 GMC 1500-V6 67 GMC K1500-SBC (originally a KM-V6) 68 GMC C1500-V6 68 GMC C1500-V6 68 GMC Suburban C2500 70 Chevy K20-SBC 71 Chevy C30 Longhorn-SBC 72 GMC Suburban C1500-BBC 72 Chevy C10-SBC 72 GMC C5500-ToroFlow Diesel

12-02-2004, 08:36 PM	#5
longhorn71 Senior Member Join Date: Sep 2004 Location: CANADA Posts: 1,681	grade 8 bolts are good



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