ConcoursMustang Forums

Restoring - General discussions that span across many different groups of years and models => Suspension => Topic started by: ruppstang on April 23, 2011, 11:12:24 PM

Title: spring seat bolts
Post by: ruppstang on April 23, 2011, 11:12:24 PM
I have several what I thought were original 68 spring seats they have 3/8 NC bolts. I ordered a AMK set of nuts and got 3/8 NF. Were the originals 3/8 NF? Marty
Title: Re: spring seat bolts
Post by: J_Speegle on April 24, 2011, 02:04:53 AM
Marty nothing here at hope to check this moment (Calif Special is in the storage building elsewhere and can't be sure if 69's were the same. If someone else doesn't respond I'll check a couple of 68's at the shop this coming week
Title: Re: spring seat bolts
Post by: TLea on April 24, 2011, 11:40:36 AM
I'm not home to check but I think the nuts are the same as the rear spring shackles which are NF
Title: Re: spring seat bolts
Post by: 68 S Code on April 26, 2011, 09:17:10 AM
If NF means flaired nut then yes it should have the shoulder and tapered flair. Question I have is should it be dyed red?
Title: Re: spring seat bolts
Post by: J_Speegle on April 26, 2011, 01:35:19 PM
Quote from: 68 S Code on April 26, 2011, 09:17:10 AM
If NF means flaired nut then yes it should have the shoulder and tapered flair. Question I have is should it be dyed red?

Believe that the NC and NF refers to National Fine or Coarse threads

I've never seen originals with any sign of red dye on those on any year Mustang or Shelby - just me
Title: Re: spring seat bolts
Post by: TLea on April 28, 2011, 11:11:40 PM
Marty, checked 3 sets of originals and all are NC not NF. Never seen red dye on perch bolt
Title: Re: spring seat bolts
Post by: 68 S Code on April 29, 2011, 07:35:17 PM
Not on the bolt but on the nuts.
Title: Re: spring seat bolts
Post by: Bob Gaines on April 30, 2011, 01:02:14 AM
Quote from: 68 S Code on April 29, 2011, 07:35:17 PM
Not on the bolt but on the nuts.
Never seen red dye on perch nuts. Bob
Title: Re: spring seat bolts
Post by: TLea on May 02, 2011, 08:48:26 PM
nuts are cad, no dye