Bolt Sizes - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Striker169 · 11-24-2005, 11:33 AM

What size are the bolts that hold down the bench seat and that hold up the plate that goes under the steering wheel?

Also does anyone know what size o-ring goes on the TH-350 speedo cable so it will stop leaking where it connects to the transmition?

**kwmech** · 11-24-2005, 12:20 PM

Bolts are 5/16-18 x 3/4 or 1'' The "o" ring you speak of, if I am on the same page as your description is a really small seal that pushes into the speedo housing and is held in by a wire ring. anyways you should be able to pick one up at a transmission shop. They probably have quite a few laying around.

11-24-2005, 11:33 AM	#1
Striker169 Car O'Holic Join Date: Jan 2005 Location: Austin, Tx. Posts: 692	Bolt Sizes What size are the bolts that hold down the bench seat and that hold up the plate that goes under the steering wheel? Also does anyone know what size o-ring goes on the TH-350 speedo cable so it will stop leaking where it connects to the transmition?

11-24-2005, 12:20 PM	#2
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,678	Re: Bolt Sizes Bolts are 5/16-18 x 3/4 or 1'' The "o" ring you speak of, if I am on the same page as your description is a really small seal that pushes into the speedo housing and is held in by a wire ring. anyways you should be able to pick one up at a transmission shop. They probably have quite a few laying around.



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