Author Topic: brainiacs  (Read 9974 times)

Offline Bitzer!

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Re: brainiacs
« Reply #15 on: October 29, 2010, 02:31:50 pm »

Okie dokey, I've measured the frame just behind the cab and it's 8" so I'm assuming I've got a C30  :)

The next part of the question is how do I know if it's a 3/4t or a 1t or is it back to th frame number?

cheers all
1979 GMC CrewCab  C20 1t
454 750 Holley,TH350, 14bolt diff fully floating
Why aren't there 8 days in a week!
A K5 rolling shell *new addition*

Offline zieg85

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    • 73-87 GM squarebody extended cab and conversions up to 91 R/V series
Re: brainiacs
« Reply #16 on: October 29, 2010, 04:10:08 pm »
C-30 is considered a 1 ton....
Carl 
1985 C20 Scottsdale 7.4L 4 speed 3.21
1986 C10 under construction
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