--> All 1963 Cadillacs used the 2 bolt Hydramatic (HM) starter that was used from 1961 to 1964.

--> There were two starters used in 1964 due to the use of the newTurbo Hydramatic (THM) transmission on DeVilles, Eldos and Fleetwood 60S, and the adaptor ring required to mount the "Buick Borrowed" THM transmission to the 429 engine block.

--> The 2 bolt HM starter was used from 1961 to 1964  (parts group 2.041 part # 110 7387)

--> The 3 bolt  THM starter used in 1964 was only used in 1964 for THM equipped body styles, and 1965 75 series (part # 110 7368)

--> In 1965 Cadillac got its own THM transmission with reshaped bell housing that mounted directly up to the back of the 429 engine block. Another starter (part # 110 8381) was used for 1965 except 75, all  1966, and all 1967 thru 1969 except eldo according the master parts book.

--> To reduce torque on the cast iron adaptor ring (prone to cracking), the 1964 THM starter used a rear brace to secure the starter to the engine block.  It attached to rear of starter and bottom of engine block via two longer oil pan bolts and a spacer underneath to compensate for height of oil pan outer lip.

--> Also, due to change in right hand exhaust manifold from one that attached to exhaust Y-pipe in center in 1963 to one that attached in rear in 1964, a small bracket was used in 1964 to hold the battery cable next to the engine block.

Below are pictures including:  1964 THM starter on left and 1961-1964 HM starter on right; the rear brace used on 1964 THM starters, and the battery cable bracket used on 1964 engines.  

Views: 3199

Comments are closed for this blog post


  • Add Photos
  • View All


CLC 2019 Grand National - Louisville, Kentucky, June 11-15, 2019

Started by Jason Edge in General Discussion. Last reply by Jason Edge 5 hours ago. 33 Replies

1963/64 Cadillac Chapter 2019 Grand National Page www.2019GN.6364Cadillac.com…Continue

Tags: National, Grand, CLC, 2019

1963 trunk latch pin

Started by Daniel Grande in 1963/64 Cadillac Specific Discussion 15 hours ago. 0 Replies

I have a coupe deville and my trunk driver side came off looks like the pin came out of the latch I got pin and trunk out but for the love of me cant figure how the pin goes bk in came someone please…Continue

Comfort Control and voltage from the voltage regulator or alternator

Started by Christian Doerk in 1963/64 Cadillac Specific Discussion 21 hours ago. 0 Replies

I probably currently have a similar problem like Sam G in this post:…Continue

Tags: alternator, transducer, regulator, voltage, Control

courtesy light wiring

Started by Andy Kalnins in 1963/64 Cadillac Specific Discussion. Last reply by Mark S Anderson yesterday. 16 Replies

My right rear door courtesy light has two wires- a solid red and a black w/ white stripe. What puzzles me is that both wires have voltage across them when the key is turned to the left or right. To…Continue

Tags: wiring, light, courtesy

Blog Posts

Cadillac Returns to its Roots Under New Leadership

Posted by Jeff Kinzler on May 1, 2019 at 12:30am 3 Comments

Cadillac’s new boss says they should stop trying to build BMWs and go back to building Cadillacs again.

What do you think? 


Radiator And Shrouds

Posted by Dominic Salemi on April 24, 2019 at 3:36pm 1 Comment


Anyone have a decent radiator and shrouds and hardware for a 1964 Cadillac deville. I have an alum. radiator and I'm deciding on to fix it or back to the original one. If I fix it I won't need parts.


64 Recirc/Fresh Air Door Actuator replaced; FROM THE INSIDE.

Posted by Norman Silverman on February 4, 2019 at 11:21pm 8 Comments

I am happy to report that I have successfully replaced the Fresh Air/Recirc door actuator that is located on the blower box-and have done so without having to remove the blower box. I did it by taking out the glove box and attacking it from the back.  It took several days, LOTS of patience and some band-aids, but it is done. THE most difficult part -BY FAR- is to remove and then replace the screw that sits on the actuator arm, connecting it to the fresh…




  • Add Videos
  • View All

© 2019   Created by Jason Edge.   Powered by

Badges  |  Report an Issue  |  Terms of Service