What would be the point of upgrading your lethargic stock 904 to a modern 518 overdrive unit if a beef up and rebuild were not conducted? NO POINT! So, in Part 2 the 518 gets worked over.
- Tear down and cleanup. Inspect parts and make parts list.
- Get new components for any bad parts, new bearings, hipo billet servos ( 518 has a couple plastic), hipo bands & clutches, shift kit, and vacuum controls to solenoid for overdrive & new converter lock up.
- Add deep sump pan and button it all up.
- Show off completed unit by curling it 100 times!!! It’s ready to install…