I suggest that if you have the money,get the dealer rebuilt unit. If you opt to have your old tranny rebuilt, the rebuilder might use some of your onld tranny parts because they "are still good". The dealer rebuilds are better warrantywise.
1987 mercedes 300E
1995 e320 conversion(hated the 300e grill)
Monochromatic Paint (Custom Blue)
Flat Badged (front)
custom "carbon fiber" console
18 inch HP EVO rims
Sold! Now I drive a Monte Carlo SS