Modifications for a 59 Hydramatic transmission in a 62 Olds 98

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Old Jun 4, 2025 | 04:21 PM
  #1  
Kliv555's Avatar
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Modifications for a 59 Hydramatic transmission in a 62 Olds 98

I have a rebuilt 394 I am going to put in my 1962 Olds 98 project, I found a 59 hydra transmission. Does anyone know how big of a project it would be to use this transmission instead of the slim Jim?
thanks.
Old Jun 4, 2025 | 07:51 PM
  #2  
Charlie Jones's Avatar
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Using a '59 trans in a '62 would require major floor surgery.
This trans is big, much bigger than a "Slim-Jim".
A much better choice would be a TH 400 conversion trans by Ross Racing or Tanson Enterprises.
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