The Hydramatic Transmissions (used in all 63 body styles and 62 series, 75 series, and commercial chassis in 1964 body styles) often have shims between the rear transmission mount and rear crossmember to reduce lower speed vibration.
In the 1963 Shop Manual, Propeller Shaft and Rear Axle Chapter 7, Section 10 Propeller Shaft Assembly Removal and Installation, information found on page 7-11 it states:
"Horizontal or vertical alignment of propeller shaft should not be necessary on 1963 model cars, other than making certain that the propeller shaft is properly aligned in relation to the transmission. Any vertical deviation from the correct installation that might cause propeller shaft vibration at low speed (0-50mph), can usually be corrected by adding .075 inch shims at the engine rear mount (rear trans mount). Not more than four shims should be used otherwise there will be insufficient clearance between transmission and floor pan.
Usually the addition of shims will eliminate low speed vibration caused by misalignment of propeller shaft at transmission. However, other factors contributing to this condition could be due to universal joint failure, excessive tire or wheel runout, wheel, tire, or brake drum out of balance, and tires other than the original equipment being used."
In the 1964 Shop manual, Propeller Shaft and Rear Axle Chapter 11, Section 10 Propeller Shaft Assembly Removal and Installation, information found on page 11-11 it has very similar information with the exceptions noted in bold below:
"Horizontal or vertical alignment of propeller shaft should not be necessary on 1964 model cars, other than making certain that the propeller shaft is properly aligned in relation to the transmission. Any vertical deviation from the correct installation that might cause propeller shaft vibration at low speed (0-40mph), can usually be corrected by adding .075 inch shims at the engine rear mount (rear trans mount). Not more than three shims should be used, otherwise there will be insufficient clearance between transmission and floor pan.
Addition of shims will eliminate low speed vibration caused by misalignment of propeller shaft at transmission. However, other factors contributing to this condition could be universal joint failure, excessive tire or wheel runout, wheel, tire, or brake drum out of balance, and tires other than the original equipment being used."
It has been my experience that the Hydra-Matics were prone to have these shims, but having gone through 30+ 1964 parts cars, including 20+ with Turbo Hydramatics, I do not recall any with turbo Hydramatics having shims. This might be due to the shorter tranny and longer driveshaft improving the overall angle?
Comment
Jason, My 63 came with two shims installed from the factory. I had some work done on my car about 15 years back and the mechanic didn't re-install them. If you have the original type shims, I would like to buy a couple.
Thanks, David
Scott Santora Online
Started by Russ Austin in For Sale 18 hours ago. 0 Replies 0 Likes
I have 2 working T-3 low beam headlights and numerous T-3 high beam headlights for sale. Low beams are 22 each and high beams are 15.00 each plus shipping. Please email me at russ@thecadishack.com …Continue
Started by Larry Rees in 1963/64 Cadillac Specific Discussion. Last reply by Jason Edge 20 hours ago. 19 Replies 0 Likes
Neither of my cornering lights are working. I started by focusing on drivers side. I removed the entire assembly and cleaned it up, replaced the wire to the socket, cleaned and lubricated the socket…Continue
Started by Michael Vogler in 1963/64 Cadillac Specific Discussion. Last reply by Tony Prichard yesterday. 7 Replies 0 Likes
My original '64 Devile radio has been rebuild and upgraded. Can't wait to get in back in the car!https://youtu.be/DgYqoV290KwContinue
Started by Doug Scarrow in For Sale yesterday. 0 Replies 0 Likes
Just listed nice 1964 Cadillac steering wheel for tilt column https://www.ebay.com/itm/266781070358. $150 plus $25 USA shippingContinue
Posted by Dave Fehrle on March 23, 2024 at 3:23pm 8 Comments 0 Likes
While checking my Carter carb with engine running, I took the air cleaner off and there was a very loud hissing sound of air. I placed a piece of paper over the carb and it didn’t move up or down, is this normal?
Posted by Chase on March 21, 2024 at 5:55am 0 Comments 0 Likes
Hey everyone, has anybody done a Vintage Air AC/Heat setup in their car? I want to bypass the old vacuum setup and go with a Vintage Air Gen 2 model. Before I get started, does anyone have any experience with this? (Which model to go with, do’s and dont’s, etc.) It looks pretty involved. Any and all info/pics would be greatly appreciated. Thanks!
Posted by CHRIS CARLSON on December 6, 2023 at 10:54am 0 Comments 0 Likes
Who rebuilds original AC accumulator dryers for 1964 Cadillac? I have been on Classic auto air in Tampa FL wait list for over a year , There is one on Old air products web site that looks very similar to the original # 21-4214A but states it fits 1962 Gm cars, The one recommended for a 1964 Cadillac is half the length 21-4215A What is everyone using ? I would prefer to be as original as possible. Thanks
Posted by Les Eastling on November 15, 2023 at 10:34am 1 Comment 0 Likes
My son, unbeknownst to me, had all three of the horns on our 1963 Eldorado completely restored. We had recently added the Eldorado trumpet horn to the two standard horns and the sound was not very good... we had heard good ones so we knew something was not right... but there was not much we could do to get better sound from the 3 horns.
There is a restoration service called The Horn Works who my son…
Continue© 2024 Created by Jason Edge. Powered by
You need to be a member of 63/64 Cadillac Website to add comments!
Join 63/64 Cadillac Website