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I would "guess" the flywheel flex plate has failed. I would pull the flywheel inspection cover and take a look. Did you hear any noise or feel any vibration prior to the breakdown?
David is correct. If you do not see any other obvious issues with the driveshaft, U Jointss, etc, pop the inspection cover.
I am out of the 64 THM flexplate. I would post on our wanted forum - www.wanted.6364cadillac.com I will also put you down for one on my Wait List.
Sorry to hear it, Bob. I'd check the axle for any obvious breaks or damage, and if okay assume it's trans-related. Flex plate is a likely culprit. Did you leak any fluid, is the trans up to the proper level? You'll remember last year my trans pan leaked and once low on fluid, the trans was not happy at all; I lost reverse and one forward gear. Luckily it was a cheap and easy fix.
Let me know if you want an extra pair of hands while inspecting or yanking the trans. I borrowed an old transmission jack from a neighbor when I thought I'd have to drop mine, and I still have it.
You might also want to check out this blog discussion, which seems to be a similar problem: http://6364cadillac.ning.com/forum/topics/flexplate?commentId=65430...
Travis J. Hensley Online
Started by Alan Clark in 1963/64 Cadillac Specific Discussion. Last reply by Alan Clark 5 hours ago. 13 Replies 0 Likes
My car lacks the mechanism or spring needed to hold the jack in the storage slot on the right side of the trunk. Anyone have a picture of the item I should find?Continue
Started by CHRIS CARLSON in 1963/64 Cadillac Specific Discussion 8 hours ago. 0 Replies 0 Likes
Hey fellas if you're rebuilding your 429 check your timing cover for corrosion behind the water pump Russ and I had 429 engine number two on the dyno today had shimed the oil pump spring for a…Continue
Started by Bobby Brown in General Discussion. Last reply by Logan Robb 12 hours ago. 2 Replies 0 Likes
My reservoir is a little low. Any recommendations on my purchase of refill fluid? There are likely new fluids and I’d like to buy the right product. Thanks. Continue
Started by Jason Edge in General Discussion. Last reply by Jason Edge on Saturday. 4 Replies 0 Likes
So I am starting to crawl around under Dino seeing what I can fix or upgrade and as I was putting the trans linkage in a few nights ago, the rear trans mount caught my eye. I remembered that these 64…Continue
Posted by SK on June 2, 2025 at 2:20pm 2 Comments 0 Likes
Could someone post front and back photos of the 1963 right-hand kick panel with A/C?
My car didn’t come with the original kick panels, so it's a bit of a mystery to me how I should cut the backing board and carpet to fit around the A/C.
Many thanks,
-Samu
Posted by Chase on March 12, 2025 at 2:05pm 14 Comments 1 Like
Hey guys,
I have installed the same Edelbrock carb and have done everything the same as Jason’s carb and intake project. In the spring and summer months the car starts, runs and idles great! In the fall and winter months on a cold start, the car starts awful and wants to die until it warms up. I have to keep my foot on the throttle until it warms up or it will idle just terrible and try to die. Once it’s warm, it runs fantastic! Whats going on here? I was thinking of removing the…
ContinuePosted by Ray Schick on August 22, 2024 at 6:25pm 2 Comments 0 Likes
I bought this seat material thinking that it’s…
July 20, 2025 from 8pm to 9:30pm – Zoom
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