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73-87 Chevy _ GMC Trucks => Body, Glass & Paint => Topic started by: bake74 on May 01, 2010, 01:12:16 am

Title: Is a 78 cab the same as a 74 cab ?
Post by: bake74 on May 01, 2010, 01:12:16 am

  I have a 74 Chevy 1/2 ton step side 4WD truck and the cab from rocker to rocker has serious rust.  I found a 78 step side 4WD cab with no rust.  Instead of spending all the man hours to weld in all new panels, I was going to swap out cabs but have not got a straight answer on if they are the same cabs.  Anybody out there knows if they are the same.  Thanks.

Title: Re: Is a 78 cab the same as a 74 cab ?
Post by: choptop on May 01, 2010, 06:15:08 am

They are very close to the same. The cabs will swap and be basically a direct bolt in. There may be some minor differences such as door panels, and possibly wiring harness differences, but I don't think there will be anything that can't be easily overcome. I put an 85 cab on a 76 chassis, and it was a direct bolt on. All I had to do was use the 85 engine to cab harness.

Title: Re: Is a 78 cab the same as a 74 cab ?
Post by: bake74 on May 01, 2010, 12:14:03 pm

  Thanks for the help, I was wondering if the hood and fenders would work off my 74, and I hope they will.

Title: Re: Is a 78 cab the same as a 74 cab ?
Post by: choptop on May 01, 2010, 09:10:02 pm

The hood and fenders should bolt up no problem.

Title: Re: Is a 78 cab the same as a 74 cab ?
Post by: Captkaos on May 01, 2010, 10:46:27 pm

The only possible differences would be the washer wiper switch and headlight switch size/location.  Otherwise they are identical.