Originally Posted by Kieth
In 1966 GMC did offer in line 6 engines because the in cab tag on mine shows it..and on other sites the 250 six is shown as a option. This was the first year for the 250 inline six in a GMC

Originally Posted by R-Bo
A 66 GMC will have a leaf spring rear. I just was under one on Tuesday night.

It did have a strange link from the U-bolt plate up to something that looks like on old friction shock. But it had modern shocks, so don't know what those other things were. But other than that--a very typical leaf-spring Hotckiss-type rear suspension.

GMC cab will have the VIN plate on the top inside of the door frame. Open the door, look up on the frame. 1001 VIN is short wheebase and 1002 is long wheelbase. Also, if the truck is V6 motor it is GMC (although if it is straight 6 it doesn't mean it is not a GMC).


Agreed. Sorry I used a double negative.



Last edited by R-Bo; 09/17/2010 2:46 AM.
R-Bo

1959 Apache 1/2 ton Big Window, Short bed Fleetside (under reconstruction)
1966 GMC 305V6 in the family