70 4x4 wants NEW frame, what works? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

bwable · 02-13-2005, 09:22 PM

Need info on which is the best newer frame to switch with. want to keep it 4x4. would like to make it a dually want to change frames, axles, bed,what axles will interchange, any help with any info greatly apprieciated.
Thanks B

4bynut · 02-14-2005, 01:30 AM

Hey B, welcome from IL. Is your frame rotted or do you just want a newer one with disc brakes. The easiest would be to stay with a 67-72 4x4 frame. But you can use a 73-87 frame and make your own body mounts. Just my 2 cents. Jason

**JIMs70GMC** · 02-14-2005, 07:26 AM

B, Try and find a rolling chassis (71-72) would be easiest and get you disc up front. The spacing of the dually rear (cab and chassis) spring perches is the same as the 4wd so you could find a dually rear from 67-72 and bolt it in. The 73 and up 1 tons also have the same perch spacing so one of those would work also.

02-13-2005, 09:22 PM	#1
bwable Registered User Join Date: Feb 2005 Posts: 1	70 4x4 wants NEW frame, what works? Need info on which is the best newer frame to switch with. want to keep it 4x4. would like to make it a dually want to change frames, axles, bed,what axles will interchange, any help with any info greatly apprieciated. Thanks B

02-14-2005, 01:30 AM	#2
4bynut Senior Member Join Date: Mar 2004 Location: Morrison, IL Posts: 793	Hey B, welcome from IL. Is your frame rotted or do you just want a newer one with disc brakes. The easiest would be to stay with a 67-72 4x4 frame. But you can use a 73-87 frame and make your own body mounts. Just my 2 cents. Jason __________________ 2007 Chevy 2500HD crew cab, 4x4, duramax w/Allison trans. 2001 Chevy ZR2 Ext. cab 4x4 (DD) 1967 Chevy SWB 4x4, BBC, Th400, NP205, 6" lift, and 35's (In Process) 1970 Chevy Blazer 4x4, BBC, TH400, NP241, 6" lift, and 38.5 boggers in front, 44 boggers on the rear ( mud racer project)

02-14-2005, 07:26 AM	#3
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	B, Try and find a rolling chassis (71-72) would be easiest and get you disc up front. The spacing of the dually rear (cab and chassis) spring perches is the same as the 4wd so you could find a dually rear from 67-72 and bolt it in. The 73 and up 1 tons also have the same perch spacing so one of those would work also. __________________ 1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm



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