gvw of 1976 k20 truck

[lwelch]

Can anyone tell me what the gvw of a 1976 k20 is? I'm a fairly descent mechanic i can fix most problems myself,i recently rebuilt the engine in my truck and it ran good. Now all of a sudden there's a loud squeeking that i can't figure out. It sounds like a belt. I replaced the alternator which worked for awhile but its back again. It never did it before the rebuild. I would appreciate it if anyone could help me out. Thanks.

[dmack91]

Try here on post #6:

http://67-72chevytrucks.com/vboard/s...d.php?t=226214

[lwelch]

For more information on my 1976 k20 it has 3 leaf springs in front and 7 in the back. It has a small block 400 and it's full time four wheel drive.

[C-10 simplex]

1) Are you talking about gvwr?


2) What does this have to do with the alternator/belt(s)?

[lwelch]

yes i was talking about the gvwr. the other was just another question i had. thanks for replying.

[Gregs71]

In '76 there were two 3/4 ton ratings. a "light duty" 3/4 ton rated at I believe 7600lbs, and a "heavy duty" 3/4 ton rated at 8200lbs.

In my experience the "heavy duty" trucks seem to have a payload rating of about 2900-3000lbs---not sure about the light duty trucks.