Rear end cover bolt size

ANDYS87 · 04-28-2008, 09:39 AM

Does anyone know the size/thread of the rear end cover bolts for a 99 GT? As stated in another post, I installed a Ford Performance rear end girdle last year. The bolts are already all rusty, and the car was in storage all winter. So, I want to replace the bolts with stainless ones. I just don't know what size/thread they are...without removing one and going to the store to match it up. It would be nice to know now incase I have to order.

*Randy Stinchcomb* · 04-28-2008, 09:49 AM

Quote:

Originally Posted by ANDYS87

Does anyone know the size/thread of the rear end cover bolts for a 99 GT? As stated in another post, I installed a Ford Performance rear end girdle last year. The bolts are already all rusty, and the car was in storage all winter. So, I want to replace the bolts with stainless ones. I just don't know what size/thread they are...without removing one and going to the store to match it up. It would be nice to know now incase I have to order.

I show them as being a 5/16" - 18 X 5/8" long

ANDYS87 · 04-28-2008, 12:31 PM

Thanks Randy...that saves me some time

*Randy Stinchcomb* · 04-28-2008, 12:33 PM

no problem but I just thought of something, the 5/8" is for a thin metal cover and the girdles are alot thicker in the flange area, so you might need them to-bo closer to 3/4" or even 7/8" long

ANDYS87 · 04-28-2008, 12:35 PM

I think the ones included were 1inch or even 1.25 inch.

Just a quick question: the stock size, 5/16- 18.....does the 18 mean threads per inch?

*Randy Stinchcomb* · 04-28-2008, 01:02 PM

Quote:

Originally Posted by ANDYS87

Just a quick question: the stock size, 5/16- 18.....does the 18 mean threads per inch?

thats is correct....

TUFF 4.6 · 04-28-2008, 02:54 PM

Hey Andy, 5/16x18x1.25 one and a quarter inches.

ANDYS87 · 04-28-2008, 05:28 PM

Thanks everyone. I remember that they were pretty long!

04-28-2008, 09:39 AM	#1 (permalink)
ANDYS87 Member Join Date: Dec 2006 Posts: 73	Rear end cover bolt size Does anyone know the size/thread of the rear end cover bolts for a 99 GT? As stated in another post, I installed a Ford Performance rear end girdle last year. The bolts are already all rusty, and the car was in storage all winter. So, I want to replace the bolts with stainless ones. I just don't know what size/thread they are...without removing one and going to the store to match it up. It would be nice to know now incase I have to order.

04-28-2008, 12:33 PM	#4 (permalink)
Randy Stinchcomb Super Moderator Join Date: Aug 2005 Location: Randallstown, Md Posts: 2,362	no problem but I just thought of something, the 5/8" is for a thin metal cover and the girdles are alot thicker in the flange area, so you might need them to-bo closer to 3/4" or even 7/8" long __________________ Randy Stinchcomb contact info: Liberty Ford of Baltimore 410-655-2000 parts ext 5618 Got Thumb-Burn? go here for help=> www.thumbdinger.com come Fish wth us @: www.AtlanticAnglers.com

04-28-2008, 02:54 PM	#7 (permalink)
TUFF 4.6 Senior Member Join Date: Dec 2007 Location: Richmond Va. Posts: 368	Hey Andy, 5/16x18x1.25 one and a quarter inches. __________________ If at first you don't suceed, get PISSED and go home!! Last edited by TUFF 4.6 : 04-28-2008 at 05:47 PM.

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04-28-2008, 12:31 PM	#3 (permalink)
ANDYS87 Member Join Date: Dec 2006 Posts: 73	Thanks Randy...that saves me some time

04-28-2008, 12:35 PM	#5 (permalink)
ANDYS87 Member Join Date: Dec 2006 Posts: 73	I think the ones included were 1inch or even 1.25 inch. Just a quick question: the stock size, 5/16- 18.....does the 18 mean threads per inch?

04-28-2008, 05:28 PM	#8 (permalink)
ANDYS87 Member Join Date: Dec 2006 Posts: 73	Thanks everyone. I remember that they were pretty long!