We too got carried away and built a Ford F-150 based on the TRX-4. Now, some will say that it is available for purchase… True, but we wanted something different. The Ford F-150 from Traxxas is a so-called High-Trail model with a long wheelbase of 336 mm. That is quite nice, but to be honest, this model does not have much to do with reality. Hence our approach to create a truck that is as realistic but brutal as possible, featuring all the refinements of the TRX-4 chassis.
What does that mean?
The suspension must be lowered without losing suspension travel. The same applies to the wheels; they are too large, so they must go. The motor, we will not talk about that; we need a new one. Last but not least, the axles: the original ones are too light, so we installed an aluminum/brass combination from the company Vitavon here.
Let us get to the details
The body of the F-150 is truly excellent. We painted it in Candy Red and Black and equipped it with the original Traxxas lighting kit. Nothing more needs to be done here; with the clipless system, everything is in order and ready for the first drive.
For the ladder frame, as already mentioned, we opted for a conversion using Vitavon parts. These are manufactured in very high quality from high-strength 7075 aluminum and supplemented with brass weights on the portal axles. To lower the suspension, we modified the original shock absorbers of the High-Trail version (110 mm) with the piston rods of the standard TRX-4 version. These now measure 100 mm. The longer housings also result in a larger oil volume, which has a very positive effect on the damping. The springs from the standard TRX-4 variant were also used, allowing the suspension and ride height to be adjusted well.
The axles of the TRX-4 are suspended by several links; some mental effort was required here. Traxxas installs an additional extension for the rear axle in the Long-Travel version. For whatever reason, this part is completely superfluous, so we removed it. We built completely new stainless steel control arms for our Ford, thereby also saving ourselves the aforementioned extender. The rear axle mounted in this way has a much more dynamic suspension movement and now serves the purpose of a trailing axle much better than before.
As the drive for our F-150, we chose the Hobbywing HW38020386 AXE Plus R3 540L 2100kV R2 combination. This can be controlled very sensitively in first gear and has considerable speed in second gear. And as for the power… more than enough!
To properly stow all the new technology, we built a carbon battery board that also offers space for the Hobbywing controller. This immediately creates a tidy appearance amidst the usual cable clutter of the TRX-4. Speaking of technology, we drive all our models with Sanwa remote controls. Unfortunately, these only have 4 channels, but that is sufficient for a TRX-4. As a solution, we used Reef servos for the differential lock and the shifting. These are freely programmable. This allows the differential lock servos to be connected via a Y-cable, and the direction of rotation as well as the travel can be adjusted separately.
As our vehicle slowly takes shape and the end is in sight, we started looking for the right wheels. We found what we were looking for at RC4WD. We opted for the Classic 10-Hole Chrome 1.9″ Beadlock Wheels. Here, the small holes in the rim bed were drilled out and additionally fitted with the 1.6 mm Hex Bolts from RC4WD. It is a bit of a gimmick, but we like it. For the tires, we chose the Goodyear Wrangler MT/R 1.9″ 4.7″ Scale Tires from RC4WD. These are not too large, but still look quite aggressive.
All in all, we let off steam here for two months and, we believe, built a stylish vehicle. If you have any questions or suggestions, please feel free to leave them for us… We would be delighted.
Thank you very much for reading.
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