1968 GMC Terra Firma
 

A new project came my way over the Christmas break. The below 1968 GMC. I have been looking through Craigslist for the past couple of years, and this truck showed up with an amazing price. I jumped on it right away and the previous owner even delivered it to the shop!

Right now it is a long bed 3/4 ton. The cab and front end are super straight. The bed on the passenger side is not in the best of shape, but can be fixed. The engine is a 305 V6, and I am going to rebuild the carb and get it to run on the original power plant for now. My plan is to put either: 1. 350 small block, 2. 454 big block, 3. (or my current preference) an LS motor. We will have to see what the budget is after I finish my Dually. This truck will get bagged and slammed to mother earth and lay frame. I will shorten the frame and do a short bed conversion. Not 100% sure on wheels just yet, still looking at some ideas. I want a Porterbuilt front suspension, and the rear I want an IRS either out of a Vette or maybe I will build something custom. Again the budget will have to be consulted.

BTW you can see my current project below. It is a 1975 Chevy dually. Some of you may have already seen it here on this forum. I am trying to get it complete enough to go to the 2016 Lone Star Throwdown at the end of February.

Stay tuned...

Re: 1968 GMC Terra Firma
 

So I have had these pictures for quite some time. If I go IRS this is what I will do. I'm a Corvette guy so this is right down my alley. Also I dig the cantilever airbag/shocks!

Re: 1968 GMC Terra Firma
 

So I got the carb from the previous owner today. It was in a million pieces in a box! So when I got done with work today I watched a couple of YouTube videos on how to rebuild this particular model. This style of carb was used by GM in a ton of applications, and each one had there own special version. So I did the best I could to piece this thing back together, and actually it went back together better than I thought it would. I still need a new gasket set, but that will have to be ordered or see if I can pick up one locally.

If all goes well I want to see if I can get the truck to run by the end of the weekend.

Stay tuned

Re: 1968 GMC Terra Firma
 

Well the discussion is now over concerning the V6 staying in this truck. I just sold it and the 4 speed transmission. I will take it out once the snow melts off.

Now the discussion turns to what will go back in place of the V6? I'm thinking 5.3 LS with a 4L60E would be the easiest and most affordable. Plus there is a ton of aftermarket parts to support it also. Hmmm... Maybe a 6.0 LS... Have to see what is out there!

Re: 1968 GMC Terra Firma
 

Did you mean to post this in the 73-87 part of the board? Id love to get either a 67 or 68. Saw one of those 305s at my local wrecking yard, theyre beasts! Too bad there no aftermarket support for them, would be an interesting motor

Re: 1968 GMC Terra Firma
 

Thanks for catching that!

I have moved the thread to: http://67-72chevytrucks.com/vboard/s...=1#post7430138