A-727 from Classic Industries

Build one yourself, really simple with tons of reference material available in books and on the net.

Builders sell a lot of "transmissions are black magic." JMO

This ^^

It ain't rocket science but experience has no equal.clean-clean-clean if you don't clean it will screw a build up quick

This ^^

I agree. Build it yourself. 904's & 727 Transmissions are HELLA Easy to build compared to an engine. If you can do an engine you can do do one of these transmissions in your sleep.

..aaaand This^^^

My brother rebuilt his 904 with zero experience...and installed a TF2 kit...

He had no problems, aside that we didn't have the special compressor tool for the big *** spring in the direct drive hub (I think that's what it was)...but, proper parts, proper tools, instructions, and a few hours are all you need to rebuild these simple 3 speed automatics...