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Author Topic: custom crew cab  (Read 5500 times)

Offline hvactech

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custom crew cab
« on: July 24, 2007, 06:49:53 pm »
Hello to all,
I'm new to the block, I've been reading for a while, you guys seem to have a good knowledge of what your talking about, I've found some very usefull stuff on this site.

I have a project that I'm wanting to start on shortly, I've acquired some trucks and now I'm trying to decide which way to go. With what I have accumulated or keep searching for more parts.  I have a 91 C3500 crew cab with a 5.7, unknown trans. looks different than pics I've seen on websites, GM 14 bolt FF rear.  I also have a 84' K10 longbed, 5.0, NP208, 700R4, 10 bolts front and rear.  I also have a th350 and a NP203 with a conversion kit.  I wanting to build a 4x4 shortbed crewcab.
Questions...
Will the big 14bolt rear end work in a 4x4? looks like spring perches are narrower.
Using the 10 bolt front axle can I convert to 8 lug to match rear and ratios?
Should I use the 700R4/NP208 or TH350/NP203?
It looks like the frames are the same width, will the 1/2 stuff fit on the 3500frame?

Any advice would be greatly appreciated!!! Some might think this is cobbling a truck together, I'm just looking to build a toy to play with and have some fun in the process of building it!
Thanks again..

Mike
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Offline VileZambonie

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Re: custom crew cab
« Reply #1 on: July 24, 2007, 08:31:33 pm »
Take a picture of your pan and see if you have the 4L80E. If so that's a keeper.
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74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline hvactech

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Re: custom crew cab
« Reply #2 on: July 24, 2007, 10:21:50 pm »
Ok I think I got the picture thing figured out, here is the trans pan.  It's not a real good picture, hard to take the way the truck is sitting. I kind of thought it might be a 4L80.  If it is one, it is set up for 2wd.
Can it be adapted to fit the NP208?  Thanks for your help and advice.
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Offline hvactech

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Re: custom crew cab
« Reply #3 on: July 24, 2007, 10:30:43 pm »
here is a pic of the crew cab project truck.
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Offline Blazin

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Re: custom crew cab
« Reply #4 on: July 25, 2007, 06:07:45 am »
Spring perches are the same on all 73 - 87 trucks 1/2 through 1 ton. The cab and chassis however had a narrower rear housing.
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Some people are like Slinkies. Not really good for anything, but they still bring a smile to your face when you push them down a flight of stairs

Offline VileZambonie

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Re: custom crew cab
« Reply #5 on: July 25, 2007, 10:09:38 pm »
4L80e = business
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,                           ___ 
                         /  _ _ _\_
              ⌠ŻŻŻŻŻ'   [☼===☼]
              `()_);-;()_)--o--)_)

74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline hvactech

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Re: custom crew cab
« Reply #6 on: July 25, 2007, 10:13:36 pm »
thanks ville
what would it take to make it fit the NP208
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Offline xtremjeepn

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Re: custom crew cab
« Reply #7 on: December 02, 2007, 11:54:34 am »
14bff is a great axle for a 4x4. That is what is in the short-bed crew cab I am building.
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Cole
Restomod Crew Cab Short box on 37"s
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