904 lockup info
Aside from your question, be aware that the "lockup 904" (AKA the A999, 32RH) does not fit well in the very restrictive early A transmission tunnel. It has reinforcing ribs on the tail housing that are not present on other 904s, and these require extensive grinding (almost to the point of removal) in order to clear the upper crossmember.
The lockup also dictates the use of 3/8" cooler lines instead of the normal 5/16". They're a bear to bend and fit into the cramped early A tunnel... just so you know ahead of time.
Aside from your question, be aware that the "lockup 904" (AKA the A999, 32RH) does not fit well in the very restrictive early A transmission tunnel. It has reinforcing ribs on the tail housing that are not present on other 904s, and these require extensive grinding (almost to the point of removal) in order to clear the upper crossmember.
The lockup also dictates the use of 3/8" cooler lines instead of the normal 5/16". They're a bear to bend and fit into the cramped early A tunnel... just so you know ahead of time.