73-87chevytrucks.com

73-87 Chevy _ GMC Trucks => Interior & Equipment => Seats and Restraints => Topic started by: outkastdually on April 05, 2014, 12:07:23 am

Title: 3 point seat belt bolts
Post by: outkastdually on April 05, 2014, 12:07:23 am

does anybody know what size and thread the upper (shoulder) bolt is? I have a 73 dually but I would assume the same bolt is used in all 73-87

Title: Re: 3 point seat belt bolts
Post by: Captkaos on April 09, 2014, 10:05:59 pm

Did you figure this out? 

Title: Re: 3 point seat belt bolts
Post by: outkastdually on April 10, 2014, 11:58:04 pm

still havnt figured it out lol, I would just go to a junk yard but I am not  close to one and I am recover from a serious double knee surgery, so walking around a junkyard is kinda hard right now, but there is a hardware store down the road!! I am about to just guess and buy a couple different sizes

Title: Re: 3 point seat belt bolts
Post by: bake74 on April 11, 2014, 07:21:12 am

     Here is a install (http://www.julianos.com/how2_3point74chevy.html) of 3 point seat belts in a non 3 point seat belt truck.  It says "For Technical Assistance or Questions Call 860-872-1932."
     You could call them and ask if they know the size you are looking for.

Title: Re: 3 point seat belt bolts
Post by: jetmech on April 11, 2014, 07:54:41 am

My '86 has a 1/2" 13 thread per inch special bolt that uses a 13/16" wrench. It is 1 1/4 inch long and approx. 11/16 of that length is a slightly larger shoulder. Hope this helps.

Title: Re: 3 point seat belt bolts
Post by: DnStClr on April 12, 2014, 02:42:09 pm

Same here. It looks like threadlocker (blue) is used on the threads.

Title: Re: 3 point seat belt bolts
Post by: outkastdually on April 12, 2014, 07:58:35 pm

thanks! I will give that size a try and hope it works in mine!