Does anyone know what parts can be used from the 48RE to upgrade a 47RH for greater strength and durability? Things such as planetary sets, torrington bearings and clutch packs that will hold additional disks? I am sure someone has done this already somewhere out there. If so, would you be so kind as to list the parts required and where to purchase said parts?

 

I've always heard that a RH is stonger than a RE

 

Actually, the 48 parts are much stronger than 47 parts.
In my research into a stronger trans, I found out all the 48re components fit into the 47re case, but the original type VB must be used. You can also just bolt in the 48re in and rewire the nuetral safety switch. On the '99 and older, (47RH) the original internal harness and GOV pressure sensor must be used.

 

Whoops, missed the 48 part, was thinking a 47re compared to a 47rh

 

All the hard parts are the same. The only difference is that the re shifts when the computer tells it to, and the rh shifts when the tranny pressures tell it to.