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PostPosted: Tue Jul 02, 2019 9:20 pm 
1 BBL (New)

Joined: Mon Jul 01, 2019 9:54 pm
Posts: 1
Car Model*: 1965 Plymouth Valiant Signet convertible
Dried up output seal and resulting fluid leak led me to my latest adventure, replacing the output shaft seal on my 1965 Valiant's a904. This seal (TF6 CT6392 12925A or # 12925A), didn't last long and I thought I'd give this seal (National 472466 Oil Seal) a try. Cheap and easy solution is what I strive for. Trunnion boot was ripped and so I thought this was a good opportunity to get that fixed up as well. I can't speak for anyone else's experiences, but all this talk I've run into about needing a press to disassemble the Trunnion joint seems silly. I found that it has a bearing surface and simply pushed out with a small vice. Removed the pin and replaced the old cracked boot with a new style CV boot, it needed modification but ended up working perfectly. Simply trimmed it with a razor blade. (All Balls 19-5008 Black 17mm x 60mm x 81mm Long CV Boot Kit) ... hDbYAX241F
Total spent: $18.28

Trunnion boot installed.jpg
Trunnion boot installed.jpg [ 214.02 KiB | Viewed 1079 times ]
Trunnion boot.jpg
Trunnion boot.jpg [ 230.52 KiB | Viewed 1079 times ]
1965 a904 output seal.jpg
1965 a904 output seal.jpg [ 231.21 KiB | Viewed 1079 times ]
PostPosted: Wed Jul 03, 2019 3:54 am 
SL6 Racer & Moderator
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Joined: Sat Oct 19, 2002 12:06 pm
Posts: 7296
Location: Silver Springs, Fl.
Car Model*:
Thanks. I'm going to try this on my 64 Valiant 3 speed stick. I usually convert to a "normal" U-joint, but don't have the funds right now. Don't like to use NOS boots, as they are so old the rubber doesn't last.

65 Valiant 100 2dr post 170 turbo
66 Valiant Signet 225 nitrous
64 Valiant Signet
64 Valiant 4dr 170

PostPosted: Wed Jul 03, 2019 8:05 am 
Turbo Slant 6
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Joined: Fri Dec 30, 2005 2:49 pm
Posts: 866
Location: Houston, TX
Car Model*:
Glad to see there's another good manufacturer P/N for that '65 output seal (National 472466). I used an SKF 14858 when I did the rear seal in my '65 A904.

Somehow I ended up owning three 1964 slant six A-bodies. I race one of them.
Escape Velocity Racing

PostPosted: Sat Jul 06, 2019 2:43 pm 
2 BBL ''SuperSix''

Joined: Wed May 23, 2018 1:28 pm
Posts: 13
Location: RPV, CA
Car Model*: Dodge Dart Convertible 1964
Thanks for the trunnion boot tip. Ordered one up, hope it fits my 64 270, looks like it will. I got a "stock" one a while ago and it disintegrated very quickly.

Cheers, Bill.
Smoke em of you got em.

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