Please check my check list- Mating/Installing motor and trans

Don't know if it's been covered or if you might already know....if it's a newly overhauled trans, then it's best to keep the car up on jacks, fill the trans with fluid, start and run the engine, run the trans through the gears (using the brake to stop the trans between gears), keep running the trans through all the gears and stop and recheck the fluid level numerous times. As the trans fluid gets into all the nooks and crannies in the trans and fills the converter it will eventually get full. It will take quite a few cycles (re-filling, running through gears, repeat) but the trans will last a lot longer if it's completely full of fluid before you drive it down the street!! Don't ask me how I know!!

PS - I would try and get as much fluid in the convertor as possible before installing it. Convertors can hold a few quarts of fluid, not to mention trans lines and trans cooler.

treblig