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#1 |
Registered User
Join Date: Dec 2005
Location: Houston TX
Posts: 77
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Frame differences between 67 and 71
I am selling a guy a 67 frame so he can make his 71 a SWB. He is keeping his big block. What problems is he going to run into? i know he will have to notch the top of his frame for the exhaust. Is there anything else? It seems like there was something about where the power steering box mounted.
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#2 |
Registered User
![]() Join Date: Jan 2007
Location: Ill.
Posts: 584
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Re: Frame differences between 67 and 71
I don't think the 67 had big blocks, I'm thinking the area around the mounts need trimed on the 67frames.
__________________
Hi everyone, It's nice to know there's other people just as crazy about these old trucks as I am. ![]() |
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#3 |
Hittin E-Z Street on Mud Tires
![]() Join Date: Nov 2004
Location: Greenville, SC
Posts: 23,090
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Re: Frame differences between 67 and 71
A 67 frame doesn't have the "dimple" for the power steering box that 68-72 frames had. It can be cut out from the newer frame, heated and dimpled, or the PS box can be shimmed.
__________________
Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride ![]() American Born, Country by the Grace of God ![]() 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications! |
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#4 |
Senior Member
![]() Join Date: May 2005
Location: New Brunswick, Canada
Posts: 587
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Re: Frame differences between 67 and 71
He'll have to use the 67-68 rad support rubber mounts, because they made them bigger from 69 to 72 and they won't fit into the smaller holes on your 67 frame.
Pete |
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#5 |
Registered User
Join Date: Jul 2004
Location: Weatherford, TX
Posts: 225
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Re: Frame differences between 67 and 71
This is exactly my set-up as well, and the responses so far are right on. My frame, suspension, and all chassis components are complete, so next is mounting the cab, bed, and front clip.
He must remember that "frame mount" items may or may not be different between 67 and 71. He should consider this every time he buys a part. One such item is the frt bumper brackets. 71-72 were different from 67-70. Also, the brake line going from a long bed to a short bed needed to be modified. It can be done, it's just something that he will have to stay aware of constantly. |
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#6 |
Registered User
Join Date: May 2003
Location: Ontario
Posts: 279
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Re: Frame differences between 67 and 71
I have a 67 and the frame is dimpled for power steering and it has power steering, did I get an odd frame or was it later in 67 when they changed and added the dimple?
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#7 |
Registered User
Join Date: Dec 2005
Location: Houston TX
Posts: 77
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Re: Frame differences between 67 and 71
thanks guys! anything else?
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#8 | |
Hittin E-Z Street on Mud Tires
![]() Join Date: Nov 2004
Location: Greenville, SC
Posts: 23,090
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Re: Frame differences between 67 and 71
Quote:
The reason the vast majority of '67 frames are straight is because GM used a ram assisted power steering set up and there was no need for the dimple.
__________________
Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride ![]() American Born, Country by the Grace of God ![]() 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications! |
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#9 |
Account Suspended
Join Date: Mar 2007
Location: san bernardino ca. everywhere
Posts: 3,938
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Re: Frame differences between 67 and 71
my 67 burb frame is dimpled for power steering to
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#10 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Re: Frame differences between 67 and 71
the core support mounts are the same 67 - 72
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#11 |
Senior Member
![]() Join Date: May 2005
Location: New Brunswick, Canada
Posts: 587
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Re: Frame differences between 67 and 71
Really? I think if you look closely you'd see that the holes in the mounts are smaller on 67-68 frames. Also the rubbers have different part numbers on most vendors sites. I have a 68 C-10 with a 72 frame. When I ordered the 67-68 core support rubbers, they slipped right through the core support holes. Maybe I was installing them incorrectly... ![]() Pete |
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#12 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Re: Frame differences between 67 and 71
sorry... the rubbers are the same. as soon as I saw this (10 days later) I realized I misspoke.
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#13 |
Senior Member
![]() Join Date: May 2005
Location: New Brunswick, Canada
Posts: 587
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Re: Frame differences between 67 and 71
no worries Longhorn,
Any idea why GM made them different? Just seems like a strange thing to change. Pete |
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