big 10/heavy half?

[irving216]

sitting at home bored and i was just reading up on the vin number info. 4th digit is a 4 on my truck... now i know that my truck seems to be very missmatched... but i just wanna know what the hell is a heavy half?

[LONGHAIR]

It's essentially a truck with 3/4 suspension and 1/2 ton axles/wheels.

[irving216]

gotcha, lemme ask you this also, i looked at 79-80 vin's and they only have 4 different engine codes in the vin... U (305) not one of them, which is what my vin reads... any idea?

[sethv]

Check out this VIN decoder, it's pretty helpful

http://www.73-87chevytrucks.com/VIN.htm

[irving216]

ahhh yes much better then what i was looking at. 305 only came 4bbl?

[bluex]

It also pushed the gvw high enough that GM could leave off emission equipment everywhere but CA.
Posted via Mobile Device

[Tx Firefighter]

Originally Posted by bluex

It also pushed the gvw high enough that GM could leave off emission equipment everywhere but CA.
Posted via Mobile Device

Exactly. It was a way to keep selling trucks without smog equipment. The law stated that trucks 1/2 ton and under had to have the junk on the engine, but bigger trucks didn't. I've also heard them called 5/8 ton before.