Need some info. Have a 70 Gs . Read here there is a difference between 70-72 Bracket, Hood latch/release mechanism, some of the parts all of the parts ???. Problem I am having the release mechanism handle is hitting bottom of Grill. Been long time but believe I changed just the release mech. could this be the issue,this specific to 70. Any help greatly appreciated. Kevin
Technically, all of the 70 parts are different, the rod, latch, support, handle and mechanism. The latch is minor and 70-72 will work. I think the linkage rods will interchange. The pull rods will kind of interchange, but a 70 pull rod is unique. The big issue is the support and mechanism for a 70 are a lot different. The big piece, the support has a number stamped on it. Post a pic of what you have or that #.
Numbers are 210 above 1239183 you can see problem with handle. Grill is pulled up in middle as far as the top outside studs will hold Thanks too.
What's the difference on a '70 vs. '71 latch? It'd be interesting to lay all the pieces out and note the differences. I probably have everything here for both years...
Truth is Dano, I forget...it's a very minor thing that most people don't know about and we don't want to get Brett all cranked up. The relay rod in the pic above is 71-72. The pull handle looks like 71-72. You can see that support was drilled for the grille stud. I don't think that's the right support or mechanism for 70, I think it's 71-72. This stuff has been discussed here before by Dave J, Duane, Ethan, myself and others. I'm down for the night, too late to look up numbers. But...here's one such discussion for your pleasure. https://v8buick.com/index.php?threa...rence-between-p-n-1239183-and-1239184.341949/
I have a pile of them from 70-72 that I just got back from plating. I can shoot some photos tomorrow.
What's the difference on a '70 vs. '71 latch? All the pieces are different with the exception of the hood latch assembly that slides into the hood. The hood latch assembly itself is the same for 70-72, and you can used the handles between the 2 styles, but they are slightly different. Even the center grill support section (sheet metal piece) is different. The parts are 70, and then 71-72. If you try to mix/match you are going to have problems with the grill alignment, and with where the handle sticks out through the bumper. The time to fix all this is before the bumper and grill are installed. Otherwise you need to take all that stuff off to put in the correct year center brace and build from there. Duane
The part numbers for the center braces according to the assembly manuals are; 70------------1231399 71-------------1235119 72-------------1239184 Now those numbers may or may not be the ones stamped into the part, and there were probably revisions to the part numbers throughout the production years, but it looks like your entire hood latch working assembly is for a 71-72 Buick, and the center brace is most likely a 71-72 unit as well. Duane
Thanks Duane - That's what I thought but Frank's comment above gave me pause & then I read your reply in the the thread he linked to saying they were the same. I think I knew all the other pieces were different but getting old(er) so I forget what knew.
Here is what I have. The more robust pull assembly is 71-72. The dainty one is a 70. For the handles, the left side is 70. They are larger in size on the actual part you pull on. There is also a hole in the end for a cotter pin.
Adam, The rods are different lengths/bends as well. I drew a “full size” sketch of the 2 rods side by side once so I could tell them apart. Duane PS. Your package left yesterday. Should be there Friday.
Sweet thanks. I'll check the rods I have and see if there are any that are different. I ended up with a box full of this stuff from a collection and sent it all out to be plated at the same time...and it came back last week. So I have 6 sets of hood latch assemblies ready for install now
Adam, I can probably find my sketch if you need it. If so I will post it here. If you print it out on an 8 1/2”x 11” sheet of paper it should come out as a 1-1 scale. That way you can lay the parts on top of the sketch and easily tell which was which. I used to take that sketch to all of the swap meets for ID purposes. Duane
You only have 2 types. If you flip the first one around you will have 3 of the one type and 1 of the other type. Duane
Mostly everything I know about these cars, I learned from here, BPG, George N's site and my own experience. I know a lot of info here was lost in the great hack, and the BPG site is gone. But I remember there was a discussion about the latches with pics. If I remember right it was something about the locking hook shapes within the latches. If you look at Adam's pic, the hooks for the primary and secondary catches...I think it was a 70's were pointier or shorter...I don't remember...something like that because later years added the hood spring. The relay rod on the right in your pic Adam, that's a 70. It's longer because the the mechanism is lower on the support. All of these parts can mix with some big cars, too I think. Which makes it worse.
The differences in the front bumpers (70 & 71-72) is why the pull handle exited the car at different elevations. I also don’t think the center grill mounts are exactly in the same position. Duane