Bolt size? TH400 to SB350 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

LukeSkywanker · 06-15-2018, 11:41 AM

Gents: Missing bolts to mount TH400 trans to SB 350. Anybody know the correct size and length?

**Rickysnickers** · 06-15-2018, 04:50 PM

From what I found they are 3/8"-16. However the lengths seem to vary. If you have a set of calipers, use the end to measure into the hole, from the outside of the bellhousing, and that will give you the length you need.

Jake Wade · 06-15-2018, 06:28 PM

3/8 x 1-1/4

LukeSkywanker · 06-16-2018, 03:02 PM

Thanks, gents!

06-15-2018, 11:41 AM	#1
LukeSkywanker Registered User Join Date: Nov 2016 Location: California Posts: 22	Bolt size? TH400 to SB350 Gents: Missing bolts to mount TH400 trans to SB 350. Anybody know the correct size and length? Last edited by LukeSkywanker; 06-15-2018 at 11:47 AM. Reason: Image replacement

06-15-2018, 04:50 PM	#2
Rickysnickers Senior Member Join Date: Oct 2014 Location: Eagle, ID Posts: 2,933	Re: Bolt size? TH400 to SB350 From what I found they are 3/8"-16. However the lengths seem to vary. If you have a set of calipers, use the end to measure into the hole, from the outside of the bellhousing, and that will give you the length you need.

06-15-2018, 06:28 PM	#3
Jake Wade Registered User Join Date: Aug 2005 Location: Louisiana Posts: 711	Re: Bolt size? TH400 to SB350 3/8 x 1-1/4

06-16-2018, 03:02 PM	#4
LukeSkywanker Registered User Join Date: Nov 2016 Location: California Posts: 22	Re: Bolt size? TH400 to SB350 Thanks, gents!



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