Trial Jeep features 4-wheel drive with fake V6 engine, ackerman steering, 5-link suspensions, opened bonnet and trunk and detailed interior.
This jeep was built on a new concept for me. First the axles are not pendular but with a 5-link and shock-absorbers. The layout of the links of the suspensions is mainly inspired by Jovel’s work. Secondly, I completely re-built the axles to include two options of building : with or without differential. I was boring by the Trial Truck which did not turn because of the lack of differentials so I would like to test it. To finish, the design is based on my previous jeep but with the new panels and at a bigger scale. I have seen that jeep body is more appreciated than classic truck body.
The interior is detailed, for instance with a complete dashboard, seats, V6 engine placed under the bonnet and rear benches. I also include a fire extinguisher, tubular protections, antenna… In fact it is the most detailed trial truck I have done.
Concerning the climbing abilities : they are unexpected and very good. I thought that the differential will always slipped. In fact the suspensions are very good, which enable the wheels to be flattened on the ground. The slipping of the differential is consequently limited. The main advantage is the turning radius, as you can see on the video, it is very small, what enables the truck to have good turning abilities (also thanks to the ackerman steering). The gear reduction is 12/20 20/28 and 8/24 on portal axles. On the video, the battery box is a little bit tired.
I have made pro building instructions using MLcad and Lpub, in fact this was my first lego instructions. As usual, you can buy it for 10€ and then download the instruction immediately.
Here is the complete bill of material in picture file :
But you can also checked it on rebrickable (or make any export you want)
Want to check before if you can build this moc ? The Trial Jeep has been indexed to Rebrickable.com, the webiste which matchs your parts with mocs ! (the first moc indexed to rebrickable !!)
You can buy the instructions with the following button for 10€.
After your payment, you will be redirected to a page for downloading your instructions, and will receive also the link to download by email. Please check the spam box and be patient to receive it. If you have trouble to download your copy of the PDF after payment or open the document, do not make a paypal dispute, please contact me using the contact form. The link to download the instructions expires within 24h. Contact me if you have lost your instructions. Note that you can print it, but not copy or distribute. Thank you for supporting my work 🙂
Want to slown down the steering or remove the differentials ? Here is some pictures to help you to modify the jeep :
If you find that the camber angle is too important in downhill, you can modify the portal hub with these instructions :
Designed in 2011