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#1
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Core Support strange rubber tabs
Core support is out of the car for repair and paint. When cleaning up the years of gunk I found 3 of these rubber strips across the bottom. When on the car, These would be on the bottom leading edge of the lower rail on the core support. These would have been facing the rear of the car.
Any guesses what these would have been for? They look like they were cut off at one time. I was suspecting the filler gasket around the frame to Rad support but that would have been on the top side of the lower rail. These were on the bottom exposed to the road. |
#2
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That’s probably what’s left of the lower air dam/ spoiler that I think all a/c equipped cars would have had? Ive seen them on judges also but not sure if they came that way from factory?
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#3
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yep, lower air baffle. All A/C and all RA cars came with it.
they're made from the same material as the upper filler panel. they repop them out of ABS. |
#4
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I a surprised that did much of anything to increase air flow. maybe some turbulence, or a low pressure are under the engine & chassis?
__________________
68 GTO 4-spd Convertible 78 S/E Trans am L78, WS6 Auto 78 S/E Trans am W72, WS6 Auto 79 10th aniv W72 Trans am 80 Indy pace car Trans am 89 Trans am GTA |
#5
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is this a 69 only part? Haven’t seen one on a 68.
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Don't rush me - it's only year 20 of the 3 year restoration! 68 GTO convertible YS M40, A/C, PS, PB-disc, Posi-T, PW, P-seat, AM-FM stereo 8-track, P-ant, P-trunk lid, Tilt-S, Rally gauges, Hideaways C1 224 Triple white |
#6
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yes, it was 69 only
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#7
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I believe the problem is recirculation without baffle. The air goes thru the radiator and gets pulled under support and back thru. My fathers car had an issue with overheating while towing. He added a 4 row rad. , thermal fan clutch, trans, cooler. Never solved the problem. In retrospect it was an a/c car but had been wrecked when new and baffle was missing.
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#8
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Thanks Guys !! Always more to learn on these things.
As 68 rag said I cant see this little strip doing much, but the engineers must have put it there for a reason! Guess I better get one. |
#9
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there were also fillers on the sides according to the drawing. My car only had the lower one and I've never seen actual examples of the side pieces. No one repops those either if they ever did exist. I'd be curious if anyone can post a picture of a real example of them to prove it wasn't just a design that never made it to production. Mine still has the original broken off stub of the end bracket attached with the J nut to the piece and the nut is on the lower filler, based on the assembly drawing, it should have been attached to the side filler if it was actually there.
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#10
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The application criteria for that air dam was HD cooling so therefore all AC cars had it. Any car with 3.90 or 4.33 would also have HD cooling and therefore the dam. HD cooling was also optional on any other non air car so the air dam can be correct on any model. If you are fussy airdam shouldn’t be present on a car without HD cooling as the dam wasn’t a stand alone option. This dam and baffle were not mandatory with Ram Air 3 cars (unless AC or gearing triggered it), the reason the factory sketch seems to indicate that is Ram Air in the beginning of the 69 model year meant Ram Air IV (whose mandatory sleep gearing triggered the HD cooling). Most 69 judges didn’t have the dam.
HD cooling also included baffles where the frame goes through the rad support and in GTO’s it included a 4 core rad. The clutch fan seen on AC cars was not part of HD cooling, it was it’s own option. AC cars had clutch fan and HD cooling included in the price of the AC option so those two items don’t appear on the PHS invoice. 3.90 or 4.33 gear option didn’t include the HD cooling but it was mandatory so it will appear on the PHS invoice.
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My Break Away Squad 1969 Fbird (Base, 350 & Sprint Cvt’s - 400HO & TA Hardtops) 1969 LeMans (2dr & 4dr Hardtop and a Cvt) 1969 LeMans Safari 2 seat Wagon 1969 GTO (2 Cvt, 2 Hardtops & Judge Hardtop) 1969 Catalina (3 Cvt’s & a 2dr hardtop) 1969 Ventura 2 Seat Wagon 1969 Executive 4dr Sedan 1969 Bonnie Cvt 1969 Bonnie 3 Seat Wagon (2 of them) 1969 Bonnie Brougham (4dr Hardtop & Cvt) 1969 Grand Prix SJ (2 of them) 1969 2+2 2dr Hardtop (Canadian model) |
#11
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north, what about the side pieces in the picture, have you ever seen them in real life? I can't find my PHS right now, mine was a 69 RA3 Judge auto car with 3.55's
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#12
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I can't find the PHS but I did find my window sticker pdf Mike made. I don't see HD cooling called out as an option on it and my car had the lower air dam
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#13
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Interesting, nothing to indicate it should have the airdam. Someone could have added it at some point, rad support replacement or the factory made a bobo
__________________
My Break Away Squad 1969 Fbird (Base, 350 & Sprint Cvt’s - 400HO & TA Hardtops) 1969 LeMans (2dr & 4dr Hardtop and a Cvt) 1969 LeMans Safari 2 seat Wagon 1969 GTO (2 Cvt, 2 Hardtops & Judge Hardtop) 1969 Catalina (3 Cvt’s & a 2dr hardtop) 1969 Ventura 2 Seat Wagon 1969 Executive 4dr Sedan 1969 Bonnie Cvt 1969 Bonnie 3 Seat Wagon (2 of them) 1969 Bonnie Brougham (4dr Hardtop & Cvt) 1969 Grand Prix SJ (2 of them) 1969 2+2 2dr Hardtop (Canadian model) |
#14
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I’ve never seen the ones that go up the side like in the picture but all baffle cars had the frame to rad support fillers. I suspect the side ones were dropped before production began. No sign of them in the MPC either.
__________________
My Break Away Squad 1969 Fbird (Base, 350 & Sprint Cvt’s - 400HO & TA Hardtops) 1969 LeMans (2dr & 4dr Hardtop and a Cvt) 1969 LeMans Safari 2 seat Wagon 1969 GTO (2 Cvt, 2 Hardtops & Judge Hardtop) 1969 Catalina (3 Cvt’s & a 2dr hardtop) 1969 Ventura 2 Seat Wagon 1969 Executive 4dr Sedan 1969 Bonnie Cvt 1969 Bonnie 3 Seat Wagon (2 of them) 1969 Bonnie Brougham (4dr Hardtop & Cvt) 1969 Grand Prix SJ (2 of them) 1969 2+2 2dr Hardtop (Canadian model) |
#15
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Quote:
I have the frame fillers on it as well. I seriously doubt the car ever had a core support change, I bought it in the mid 80's, in ratty but mostly original condition and it went through one bad repaint before me. My dam's got orange overspray on it from that repaint and still had original fenders with nubs of the stripes still wrapped around the inside of the fenders where they didn't sand them off so it never had any front end damage that would have required a new core support. Maybe a factory error like you say or just miscommunication. Maybe similar to the problem with the blacked out grille thing being linked to Judge options as the "rule" yet many original examples of non Judge RA cars getting the blacked out grilles as well so the real rule that just looked like a Judge thing since all Judges were RA. |
#16
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My remnants still attached sure look like they could be original. But my core support has been worked on before. Not sure why they wouldn't have just removed the leftover tabs. Still some overspray on them too.
Terrible pic of the Canadian Custom Form but no HD cooling on this one. As North said the baffle could have been added at any time. Perhaps a dealer installed a baffle if a warranty customer complained about over heating? |
#17
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Quote:
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. dstryr, since 1986 . |
#18
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My ram air 3 non judge 69 had remnits of that air dam also and HD clutch fan on build sheet
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