Swaping a pring in a P90 gearbox is very easy. The gearbox come out with only one or two screws at the back. Then opening it is very easy, compared to a Gen2 gearbox.
We upgraded my TM P90tr spring on the porch railing of my friend's house. It took 5 minutes. (house is surrounded by deep forest, no neigbors, just so people know.)
Vérificateur d'âge: Terrebonne