Seat Bolt
 

Does anyone know what size bolts are used to fasten the seatback to the seat bottom?

This is for a '77 3/4 ton with a bench seat. The 2 bolts, one on each side that go through the bracket on the back and into the side of the frame on the seat bottom.

Thanks!

i took the seat out of mine to switch it a coupple months ago i belive they took a 9/16 socket or a 1/2 socket to get em out

Sorry, I meant:

Does anyone know the thread and length of the bolt rather than the size of the head?

I need to get 2 new bolts as the PO of the truck removed them for some reason and never replaced them.

Thanks,

Anybody???

seat bolts
 

The bolts that are used to attach seat to floor are 3/8 X 16 USS bolts with a length of about 1 to 1 1/8 long using a 9/16 wrench, turning clock wise to tighten.........

The bolts used to attach seat back to bottom are 3/8 X 24 sae flat head number 3 phillips drive. These bolts are under the seat covering.

How do I know this?? I took the old seat in for a recover today.... New vinyl covers with cloth inserts, just nice........$250..
NOT show........ just nice..ready Monday.

Thank you!