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#41
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[QUOTE=68ragtop;5904544]My battery cable is exactly 38-1/8" long overall. including the connectors at each end, & with the lug end for the engine side un-bent. I bought it from Ames probably 14 years ago?
Here is the same or similar diagram from the 69 assembly manual. Looks like the same pict with a few part numbers. Appears to be the same 545249 clip used in other places. Could this be a 69 thing? Wonder why neither KK68 or I have holes in our fender wells. Something added in 69 maybe? It does have some measurements for the hole & says there is a dimple for it. I looked again on my 68 wheelwell & I don't see a dimple. "0" line could be a frame measurement reference point?/QUOTE] Quote:
Since I have my inner fenders off the car I checked for the dimples on my Fremont car. If you look at the photos, I circled the dimples that weren't drilled out. This shows that at least with the Fremont cars, the dimples are to the front, near the bottom for the RA battery cables.
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Ed 1968 GTO (Thanks Mom) 2006 Silverado 2007 Cadillac SRX 2015 Chevy Express |
#42
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The O line was the horizontal front to back reference point for any location on the car.
The O line is the vertical surface of the firewall. So say an antenna hole on the fender is located by its forward distance from the firewall (O line) and its left to right distance from the C line (center line down the middle of the car.
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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) |
#43
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I don't get the MPC's and their part numbers?? 64 3 Deuces has a 69 MPC, gto4evr has a 72 MPC and they list the negative cable as different numbers for the 68 T8 cars than what we have proven now with original cables... my 68, my 72 and ScottT's 69 he showed. All have the same part number of 2983853NS. I saw in my 69 assembly manual they list that same part number for all T8's minus the Ramairs as well. No way would they have superceded the original part number especially since my 72 has the same cable as my 68, yet the 69MPC shows a different number. Thoughts?
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#44
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Thoughts?
First, briefly, as you are aware GM at times will change a part number, and sometimes several times in a short period. One of the part numbers for my 64 GTO changed three times in a span of two years. Specifically, to the 2983853NS, I believe that is an assembly line number and not an MPC part number, and that is why it is listed in the assembly manual. I have seen the actual part number on various parts and on others not. I’ve also ordered a lot of Pontiac, Olds, and Chevy parts over the years and never saw a part number that ended with letters. I spot checked a number pages in my MPC and again didn’t see any part numbers ending with a letter or letters making me believe the number/letter combo on the cable is an assembly number not a part number. |
#45
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Quote:
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#46
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I took a closer look at that old wheel well I had. It has a dimple just like the one that Ed showed above. I measured its location from the cutout area.
.
__________________
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 |
#47
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Carl is there a large indentation at the middle rear of your inner fender? I can't remember if that's for the power brake booster or just a dent I have to get repaired
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Ed 1968 GTO (Thanks Mom) 2006 Silverado 2007 Cadillac SRX 2015 Chevy Express |
#48
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It had the smaller round indentation like yours has for the brake booster, but nothing in front of that. Is that what your talking about, or is that just an odd deceiving reflection where the left house window reflection is?
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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 |
#49
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Thats the one. One less thing to worry about.
Thanks
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Ed 1968 GTO (Thanks Mom) 2006 Silverado 2007 Cadillac SRX 2015 Chevy Express |
#50
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Bringing this back up.
I know you guys are mostly talking about RA applications ... but anyone know the lengths of positive and neg cables for standard GTO V8 with AC? Going over this thread looks like 38" for POS .... and I'm not sure what for NEG. At present I'm trying to avoid paying for the repops but I still want something close to the right length for arranging the routing. Thanks. |
#51
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Hi All,
I got some good information from this forum, just wanted to make sure I understand. We have 68 GTO (242 without R/A) and I am trying to figure out how to route the positive battery cable to the starter. Would I have to us the positive tube insulator and have a positive cable that has the 90 degree bend at the starter end? I've seen some diagrams where it has no bend, just want to be sure I am doing this right. |
#52
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I don't believe your positive cable should have a 90 bend on the terminal. Mine is flat & as it exits the insulation/tube it lines right up with the starter.
Hard to get a good picture of it, but this should help.
__________________
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 |
#53
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Here is the top side. Should be in the first wheel well wire loop, then curve down into the tube.
My car is on a lift with another car underneath it right now, or I would add another pic. But, its routed just like this diagram.
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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 |
#54
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I looked at my Ram air cars and one has that lower hole in the fender skirt for the positive cable but the other car doesn’t. The one that doesn’t have it doesn’t even have the dimple.
Possible reasons for it not being there could be… 1… the tub was replaced, not likely since the car is an 11k mile survivor with zero indication of collision 2… it’s an early Ram air car, maybe they didn’t do it right away 3… it’s a manual steering car, maybe that negated the need to keep the cable clear of the power steering belt?
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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) |
#55
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North, is it possible the dimple is very faint? in the pic I posted above in #46, this was from my parts car built in April of 1968. Would sure think it would be there throughout 69, but I could see where some don't show up. mine was not a deep "ding" in the metal for the cable strap. One thing I don't recall was why some wheel wheels had a second set of fender holes (that were not used) on the top where they bolted to the inner fenders. The one I took the measurements off above did not have the extra holes.
Also interesting that the manual shows the ram air cable routing as the routing for "400 4 BBL" & the upper fender routing as "GTO without 400 4bbl" that would be incorrect info. Should have said H.O. or R/A, correct? I am guessing we discussed this already. Now that my car is done some of theses things I dwelled on forever are slipping my mind a little. Looking at the manual, I can see that creating some confusion if you read the notes.
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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 Last edited by 68ragtop; 08-28-2021 at 07:28 AM. |
#56
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I’ll look again for the dimple on that early Judge, I’ve seen the lower dimple on my LeMans’s, perhaps the depth of the dimple varied widely.
Some tubs have the second large outer (towards the outboard) set of holes on top that were used for GP’s. Inversely GP’s all have unused top holes with plastic plugs, these holes are the same as those used to bolt the fender on GTO Or LeMans.
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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) |
#57
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@68ragtop We have the fender off right now. Looks like how the existing battery cable is routed it goes between the block and the chassis from the front, is that correct?
From your photos it looks like it comes from above and uses the insulator pipe, where do you secure the insulator pipe to? Also is there any method on the orientation the wires should be facing for proper installation of the starter, trying to avoid crimping them. I attached a video and some photos let me know if you see anything off here. |
#58
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Our positive cable wiring looks like it goes in between the engine and chassis and comes to the starter from the front. Your photo looks like It comes from above but it doesnt look like there is alot of room to come from above. Where is the insulator tube attached to?
Also is there a particular orientation the cables should face? I attached some more photos. |
#59
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Quote:
Are you running RA manifolds? The stock manifolds use a tube that mounts to the head and routes the wire between the 5 and 7 plugs and behind the exhaust manifold.
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Greg Reid Palmetto, Georgia |
#60
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For whatever reason I never got a notification of the additional posts on this thread until Greg posted. My insulator tube has a tab that secures it to the the head bolt stud that the heat shield is also fastened too. Like Greg mention though, if you have the R/A manifolds I believe you have to go underneath .
Heres's a 2 page thread that both Greg & others chimed in on that gets a little more in depth with a few pics as well as better GM diagram images. https://forums.maxperformanceinc.com...ighlight=cable Hopefully this well help.
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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 |
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