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09-01-2013, 09:20 PM
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#1 |
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Registered User
Join Date: Oct 2004
Location: Fruitland, Idaho
Posts: 68
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GMC /Chevy Cab Swap
ok, I bought a project to finish. I love 54 Chevy/ GMC pickups. the one I bought has the chassis done. The cab is a 1954 GMC and the engine is a GMC 248 ,the pickup is a 1954 Chevy. The cab is sanded and ready to paint.The front fenders
the inner fender panels and radiator horse collar is all 54 chevy. The engine uses the same mounts as the 235 .The truck runs and fenders bolted on with just bolt during transportation. My question is has anybody on this forum used a Gmc cab in place of the Chevy 1954 year models. I looks like the same cab except the dash. Any good information would be appreciated. steven |
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09-02-2013, 07:58 AM
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#2 |
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Registered User
 
Join Date: Oct 2007
Location: pittston,PA
Posts: 1,183
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Re: GMC /Chevy Cab Swap
yes they are interchangeable.
__________________
There is nothing you can't fix with a BFH or a FIRE WRENCH. 1997 chevy k1500 ext cab z71 (daily driver) sold 1996 chevy k1500 reg cab 4x4(daily driver)totaled 2008jeep patriot (wife's daily driver 2008 chevy 1500 ext cab 4x4 sold 2011 chevy 1500 crew cab ltz (daily driver) 1996 chevy 1500 reg cab 4x4 project sold 2006 pontiac grand prix gxp (daily work commuter) |
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09-02-2013, 11:21 AM
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#3 |
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Registered User
Join Date: Oct 2010
Location: Ocean Springs, MS
Posts: 1,746
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Re: GMC /Chevy Cab Swap
The GMC and Chevrolet front engine mounts are not the same.
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Gary 1971 Chevrolet C/10 1951 GMC 100 1977 GMC C15 1955 Chevrolet 3100 |
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09-02-2013, 11:30 AM
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#4 |
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Registered User
Join Date: Oct 2007
Location: pittston,PA
Posts: 1,183
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Re: GMC /Chevy Cab Swap
the rad support and cross members are different from chevy to gmc. also the rads are different too.
__________________
There is nothing you can't fix with a BFH or a FIRE WRENCH. 1997 chevy k1500 ext cab z71 (daily driver) sold 1996 chevy k1500 reg cab 4x4(daily driver)totaled 2008jeep patriot (wife's daily driver 2008 chevy 1500 ext cab 4x4 sold 2011 chevy 1500 crew cab ltz (daily driver) 1996 chevy 1500 reg cab 4x4 project sold 2006 pontiac grand prix gxp (daily work commuter) |
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09-02-2013, 07:27 PM
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#5 |
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Registered User
Join Date: Sep 2012
Location: Oregon
Posts: 3,303
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Re: GMC /Chevy Cab Swap
Cabs are the same but as mentioned, front ends are different. Mounts, rad support, rad , fenders, hood etc.
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09-03-2013, 11:04 AM
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#6 |
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Registered User
Join Date: Jul 2007
Location: Toppenish, WA
Posts: 15,411
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Re: GMC /Chevy Cab Swap
On the cab I think you can just pull the GMC dash trim out (speaker grill and gauges and swap in the Chevrolet pieces.
The frames are pretty much the same except the front crossmember and core support are completely different. I think you have figured that out though. I'm not sure that you can use the panel that the Chevrolet hood latch fastens to with the GMC core support/horse collar though. On the nose the fenders are also a lot different where they fit around the grill. This is a 54 GMC left front fender. you can see that it is square cut at the top corner like the 47/53 Chevys and GMC trucks but has the recess stamped in it for the 54 park light.  Here is the 54 Chevrolet fender I sent to a kid in Phoenix. 
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Founding member of the too many projects, too little time and money club. My ongoing truck projects: 48 Chev 3100 that will run a 292 Six. 71 GMC 2500 that is getting a Cad 500 transplant. 77 C 30 dualie, 454, 4 speed with a 10 foot flatbed and hoist. It does the heavy work and hauls the projects around. |
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09-03-2013, 02:29 PM
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#7 |
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Registered User
Join Date: Sep 2012
Location: Oregon
Posts: 3,303
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Re: GMC /Chevy Cab Swap
The dash boards are completely different and the trim would not swap. GMC's had a smooth contoured type car looking dash.
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