Parts to convert TD to tri-gear...
Claudio,
You should contact Van's for a complete parts difference list. However, and from my memory...
There are the obvious ones such as the main gear legs.
Also, the main gear has large welded assemblies that hold the main gear legs, and requires various bolts to go with them.
There are some small pieces of sheet metal to cover the fuel lines on the spar in the cockpit, and the brackets that hold the fuel lines there may be different.
Obviously the engine mount is different but that comes with the finish kit, with the nose gear leg.
There is a bracket on the firewall that holds the brake lines which is different for the Tri-gear as it does not pass the brake lines through the firewall.
Of course there are a few parts on the TD version that you would not be using on the tri-gear.
That's all I can think of right now.
Bevan
RV7A (orginally intended as a 7A/A combo until I came to my senses and just did a 7A
)