Originally I was going to wait to post this, but there is no reason this can't sit and get updated like the others.
There is a thread in our "what to fix on your new tank" section: viewtopic.php?t=3004
It has a list of some of the things that need work. This thread and others in the HL section helped me with some of the issues.
Drives needed some elevation and the new low profile gear boxes might make this an easier fix.
The little square riser is just up to the level of the original mounting pads. Then a spacer was added on top with longer screws and extended alignment pins. Most of this work was done years ago, the battery box and steel floor were the last two days.



Then the rear return idler needed to be dropped a bit, rectangle cut, flip and glue back in.

The hardest part of this is making room for the standard gear box motor to fit the PZ IV. Transmission trimming, motor repositioning, hull trimming and moving the outer drive housings to fit the new position on the axles.


