Front and rear axles

Differentials on the TRX4 includes metalgears out of good quality. On this model they included the remote controlled locking mechanism and it works like a charm. By having an outer metal wheel with tabs on on side of the diff goung into the housing it totally blocks the diff to 100%.

Below is the parts for the diffs

Fairly good pitch on the gears. The diffs feels smooth without any additional work being done.

The completed unit is actually ballraced at three positions. This is deffinetily not industry standard but will, for sure let the transmission handle some rough ground.

Diff installation in the axles. The complete unit feels like it was designed for a 1:1 car. One note: Check so you´re building the correct axle. Front and rear have different offset for where the diff is positioned. Ask me why I know ;)

Portal Axles

The portals also includes metal gears of what looks like 48 pitch. They are completely ballraced as well.

Before you put on the portals you have to attach the transmission axles inside of the housings.

Up front the portals and axles are joined via CVD´s where the outer part sits directly inside the ballbearing. This is very clever and removes the need of small set-screws to keep everything in place.

The completet front portals with their respective axle.

The two completed axles with wires for the servo actuated locking effect. They look pretty neet although I would have preffered some nicer color ont the covers as the grey part looks kind of dull. You can buy option aluminum ones if you´re up to that.

Text part will be putting the chassis frame together.

All the best

Marcus