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Seat Belt Guides 1978

PostPosted: Mon Jul 23, 2018 11:21 pm
by mikebrow74
To my recollection, my new 1978 Monza Spyder that I purchased new had square seat belt guides. It had black vinyl seats with the honeycomb insert. I'm seeing the triangular guides are more common and plentiful. Can anyone confirm I should have the square seat belt guides for my 78 project?

Re: Seat Belt Guides 1978ig

PostPosted: Fri Jul 27, 2018 1:35 pm
by cjbiagi
My 75 has square ones, I believe those would be correct for your car

Re: Seat Belt Guides 1978

PostPosted: Sat Jul 28, 2018 12:25 am
by mikebrow74
Thanks Clyde, trying hard to keep it a correct and accurate restoration.

Re: Seat Belt Guides 1978

PostPosted: Tue Jul 31, 2018 1:53 pm
by classic_cruiser
The 1978 Monza brochure appears to agree:
http://www.oldcarmanualproject.com/brochures/Chev/1978/Monza/1978/pages/1978_Monza_02_03_jpg.htm

I wonder what year they switched over to the triangular style? My 1980 sunbird has had the triangular seat belt guides since I got it in 1987.

Re: Seat Belt Guides 1978

PostPosted: Thu Jan 10, 2019 10:05 pm
by wade78spyder
My 78 spyder came with the triangle ones

Re: Seat Belt Guides 1978

PostPosted: Thu Jan 10, 2019 10:34 pm
by cjbiagi
There were a lot of changes in 1978 ...that would make sense

Re: Seat Belt Guides 1978

PostPosted: Fri Jan 11, 2019 3:37 pm
by cammerjeff
I can't speak for Monza's but on the other divisions H-body's it seems to be Model and or interior level dependant. My 77 Astre's all had the Delux interior and had Triangle style guides, the 79 Starfire had square Guides.

Re: Seat Belt Guides 1978

PostPosted: Fri Jan 11, 2019 8:55 pm
by Monza Harry
I had thought that all of my H-Bodies had the square ones, but, I found some triangular ones recently while "Putsing" around on this one, and they seem a better colour match than the others that were included.
So maybe Jeff is onto something there. My car has the all vinyl/Grotesque interior :sick: well what is left of this faded Red Mess. Harry

Re: Seat Belt Guides 1978

PostPosted: Mon Jan 14, 2019 3:16 pm
by classic_cruiser
It's possible I suppose. My '79 sunbird with the cloth interior has the square ones, while my '80 sunbird with the oyster vinyl interior has the triangle ones. They are both sunbird sport coupe models.

Re: Seat Belt Guides 1978

PostPosted: Mon Jan 14, 2019 6:44 pm
by kgroombr
I am 99% sure that most 77 and up GM cars switched to the triangle version. I have owned a few 77 Monza's and one 77 Vega and they all had the triangle version. Never owned a 76 Monza so can't speak for it, but my 76 Vega's have the square version.

Looking at the part number for the black triangle version 9737575 shows it fitting most 77 and later GM cars while the square version, part number 1708119 fits 76 and earlier. I am using gmpartswiki to verify.

Ken