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03-19-2005, 01:29 PM
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#1 |
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Registered User
Join Date: Jul 2004
Location: ashland oh
Posts: 660
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truck cab
hi all,,i'm rebuilding a 1976 K-10 stepside. MY question is i bought a 1978 cab that was only a 2 wheel drive so it has the small hump,underneath the truck in the hump is what appears to be like a cut out all the way around,it appears as though it would be the correct cut out for a 4 wheel drive,kinda like when the cabs were made they could be used for either 4 or 2 wheel. DOES anyone know anything about this or may have done it before..thank you all for any help..
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03-21-2005, 11:17 AM
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#2 |
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Registered User
Join Date: Feb 2005
Location: Killingworth, CT
Posts: 30
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I swapped a '78 2X auto cab onto my '73. The '73 is a stick, so I had to cut out the floor on the '78, and used the hump from the '73. The hump on your 4X should unbolt from the floor. I used 1/4" sheetmetal screws to attach the hump to the '78, with a little seam sealer. Been like that for 10 years with no problems....
__________________
Wise man once told me; "Don't show me what you know, show me what you don't know" Nothing worthwhile is ever easy Present Stable: 73 C-30 CrewCab Dually 4X2 91 4X2 'burban 89 4X4 'burban 84 4x2 'burban (R.I.P.) |
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03-21-2005, 09:15 PM
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#3 |
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Gentleman Jim Driver
Join Date: Nov 2002
Location: Poulsbo, WA
Posts: 1,553
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There are at least three different cab floors used on these trucks. 2wd autos have a short hump that doesn't unbolt. 4x4 autos have a tall hump that doesn't unbolt. Manual trans trucks have a hump that unbolts. I've heard others say that they had a factory auto truck with a trans hump that unbolted.
You can use the 2wd cab by modifying it in the trans hump area or using a 2" body lift.
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Joe '75 GMC Gentleman Jim '84 Chev C10 Short Wide - Super duper plain (manual steering, manual brakes, no dome light, no cig lighter) '85 Chev C10 Short Wide - Super plain Vortec 4.8 4L60E trans also: '81 K30, '83 C30 Crew Dually, '84 M1028 CUCV, '85 M1009 CUCV, another '85 C10 SWB, '89 R3500 Flatbed |
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03-21-2005, 09:19 PM
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#4 |
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Registered User
Join Date: Jul 2004
Location: ashland oh
Posts: 660
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cover
the cover on the 4x4 floor hump unbolts but on the 2 wheel drive,78 cab there is no cover to unbolt,it is just a "short hump" but stamped into the hump of the 78 2 wheel drive cab is a cut out ,or what looks like a cut out i thought may be for a 4x4 ? thanks to all
i will try to take some pic's tommorrow of what i am talking about. 
Last edited by us111; 03-21-2005 at 09:24 PM. Reason: needed to add something |
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03-22-2005, 09:30 PM
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#5 |
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Registered User
Join Date: Jul 2004
Location: ashland oh
Posts: 660
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cut out
here are the pics of the 2 wheel drive cab hump i am talking about,it appears if you follow these lines it would be correct for 4 wheel drive?? thank you
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03-23-2005, 10:13 AM
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#6 |
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Registered User
Join Date: Feb 2005
Location: Killingworth, CT
Posts: 30
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Yup, IIRC all you have to do is cut on the line.
I remember that I actually used the hump as a template to drill holes, then I used "U" nuts and the factory bolts to secure the hump to the floor as the original tunnel had welded in nuts.
__________________
Wise man once told me; "Don't show me what you know, show me what you don't know" Nothing worthwhile is ever easy Present Stable: 73 C-30 CrewCab Dually 4X2 91 4X2 'burban 89 4X4 'burban 84 4x2 'burban (R.I.P.) |
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03-23-2005, 01:13 PM
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#7 |
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Registered User
Join Date: Jul 2004
Location: ashland oh
Posts: 660
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floor
thank you hemikiller,thought it was,wanted to make sure,my old cab (the 4x4) has the nut's welded underneath also,,so sounds like the same deal,,again thanks for the help.....
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