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| | | Forums66 Topics128,048 Posts1,055,663 Members48,426 | | Most Online14,466 Apr 26th, 2026 | | AD Chevy Trucks Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: Jan 2012 Posts: 29 Shop Shark | | Shop Shark Joined: Jan 2012 Posts: 29 | Anyone ever try swapping a GMC cab with a Chevy for 47 - 54? Any major differences? Does anyone know if the body mounts are in the same locations for these years? Thanks
1948 3100 1948 Fleetline Areo 1951 Suburban Carryall ( http://photobucket.com/51Burb ) 1957 3100 " Tell me who U Hang with & I'll Tell U who You are "!
| | | | | Joined: Oct 2004 Posts: 1,780 Master Gabster | | Master Gabster Joined: Oct 2004 Posts: 1,780 | The cab mounts are different in the earlier years and the dashes in the 54/5 GMC'S and the Chevrolets are different, most other components are interchangeable. What specific year are you swapping? | | | | | Joined: Jan 2012 Posts: 29 Shop Shark | | Shop Shark Joined: Jan 2012 Posts: 29 | Thanks, Looking at 48 models . I did notice on the driver side vent might have a larger opening where the outside air came through & maybe the handle.
1948 3100 1948 Fleetline Areo 1951 Suburban Carryall ( http://photobucket.com/51Burb ) 1957 3100 " Tell me who U Hang with & I'll Tell U who You are "!
| | | | | Joined: Nov 2008 Posts: 544 Shop Shark | | Shop Shark Joined: Nov 2008 Posts: 544 | Not certain of the GMC/Chevy differences, but a 47/48 chevy cab uses a 3 point cab mount and framerail mount fuel tank, whereas the 49+ chevy cab uses a 4 point cab mount and fuel tank behind the seat.
I have a 48 cab that I intended to swap for a 49 on my truck. Well, that didn't work. At least not as a bolt on, no fuss swap. Of course, I'm picking up another 49 cab this week. | | | | | Joined: Dec 2011 Posts: 55 'Bolter | | 'Bolter Joined: Dec 2011 Posts: 55 | What problems did you have trying to bolt a 48 to your 49. I have a 47 that I plan on putting on my 51 what problems might I run into??? Sorry not trying to hijack the thread | | | | | Joined: Oct 2004 Posts: 1,780 Master Gabster | | Master Gabster Joined: Oct 2004 Posts: 1,780 | What problems did you have trying to bolt a 48 to your 49. I have a 47 that I plan on putting on my 51 what problems might I run into??? Sorry not trying to hijack the thread It really is best to start your own thread with new questions or pm the poster. In order to answer your question correctly, we will need more information. How do you know that you have a 47 cab? If you truly have a 47 cab you will have issues with mounting a three speed shifter on the column, your gauges will not be interchangeable, no provisions for a gas tank inside the cab, the emergency brake components will b missing, the cab mounts will be different, you will have a vent on the drivers side. Does your 47 cab meet this description? | | | | | Joined: May 2005 Posts: 8,878 . | | . Joined: May 2005 Posts: 8,878 | I have a 48 with a 48 cab, and I'm switching to the later rear mounts. You can buy the missing reinforcement plates/brackets that go on the bottom of the cab from the usual vendors, reproduction. Mounts you need to find used and buy the bushing kit. Drill 4 holes in the frame side rails and remove your old center mount.
Grigg | | |
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