68/69 Rear Caliper Armor

[Timothy B.]

Re: 68/69 Rear Caliper Armor

I would like to know if the armor was used in 1965 through 67.

[Chris H.]

Re: 68/69 Rear Caliper Armor

My December 10, 1968 car has armor. Interesting, 1 day earlier than Ralph's, which also has armor.

[Mark D.]

Re: 68/69 Rear Caliper Armor

Ralph's 12/11/69 armor

[Terry M.]

Re: 68/69 Rear Caliper Armor

My December 10, 1968 car has armor. Interesting, 1 day earlier than Ralph's, which also has armor.

But Chris both you and Ralph have Mark IV motors as evidenced by the rear sway bars. We still have not determined if the armor is related to the rear sway bar or time of production. We really need people to include information on their engine option as well as the date of production.

I happen to know that the other cars Ralph cites in his most recent post are of the small block persuasion.

[Rich C.]

Re: 68/69 Rear Caliper Armor

I was always curious as to why there was two part #'s listed for this line in my '73 AIM (depending on big block/sm block). Makes sense as to armor for the sway bar cars.

[Terry M.]

Re: 68/69 Rear Caliper Armor

Rich, You just gave me an excellent idea. I suspect the data we are looking for is hiding in plain sight.

The 1969 AIM (at least the one I have handy in the house) shows on UPC 5, Sheet B2 only one set of "Pipe Asm. L & R H 3879235 - 6." There is however on UPC L36, Sheet A2 titled "V-8 Engine 427 - non-illustrated parts" a listing "UPC 5 Brakes 5F Brake Line O" The O is actually a circle colored half white and half black. At the bottom of the page is the note "O Assemble same as production. See parts List or Bill of Material for part numbers."

Now if only we knew which brake line(s) were referenced. Anyone care to take a bet?

[Bob J.]

Re: 68/69 Rear Caliper Armor

My December 1969 big block has the armor.

[Rich C.]

Re: 68/69 Rear Caliper Armor

Update: My '73 AIM lists the following; UPC 5F sheet 2, Pipe assembly-rear brake-3879235-6 (left & right) L48/L82,THEN lists 3879239-0 for the LS4 Big Block. I have AIMs for '72 and '74 as well as my '73, interesting to see parts change from year to year. The layout in the '73 AIM changes quite a bit from earlier versions as to option sheets.

[Paul O.]

Re: 68/69 Rear Caliper Armor

Thanks to all but keep them coming.

Rich Terry just checked my 71 AIM UPC 5 Sheet B2 item 7 Pipe ASM. Part # 3879235-6 then in Revision record dated 6-19-70 SYM was 3974631-2 Pipe. The pipe shown is the metal line on the trailing arm but no indication why the change in part number.

Terry on UPC LS5 Sheet A2 lists UPC 5 brakes 5F brake line with a circle half white and half black but I have no sheet 5F.

Paul 18046

[Steve B.]

Re: 68/69 Rear Caliper Armor

Paul,
My June 69 big block has the armor.

[Terry M.]

Re: 68/69 Rear Caliper Armor

Terry on UPC LS5 Sheet A2 lists UPC 5 brakes 5F brake line with a circle half white and half black but I have no sheet 5F.

Paul 18046

Paul, I have no sheet 5F for 1969 either.

[John H.]

Re: 68/69 Rear Caliper Armor

Paul, I have no sheet 5F for 1969 either.

Terry (and Paul) -

There is no sheet 5F in the Assembly Manual. The "5F" referenced on the non-illustrated parts sheet refers to UPC 5F, which is a sub-group of UPC 5 in the Engineering Releasing System. There were lots of parts in UPC 5, from front brakes to rear brakes, parking brake and cables, parking brake handle, master cylinder, hoses, pipes, clamps, fasteners, etc., so UPC 5 (and all the rest of the UPC groups) were split up into sub-groups (each with its own alpha character suffix) to organize the parts into logical application groups.

If you had the Engineering Bill Of Material (which none of us do), you'd see that it's organized not only by UPC groups in number order, but each UPC group is further organized by sub-groups in alpha order (5a, 5b, 5c, etc.).

Most of the little circle symbols on the non-illustrated parts pages carry a note with the sub-group number that says "...assembles same as production, refer to Bill Of Material for part numbers"; that's the book we don't have. It has the history of every single part ever used in the car, from initial release for Start Of Production to the end of the model year. They were BIG looseleaf books with hard covers - I worked with them for many years at Engineering.