What’s up fellow racers!? How many of you race on slick, dusty or unprepared tracks with a Pro-Line PRO-2 Truck or Buggy, Or even a Traxxas Slash with a Pro-Line LCG kit and struggle to get it hooked up? I know the local tracks I run on are low to medium grip on a good day, and grip is always hard to come by. So here is a mod I did to the rear of my PRO-2 that helped get it hooked up. This mod is completely reversible at any time. So if u do prefer the old setup, it will bolt right back on with no problems at all. The mod requires around $25 in parts and takes less than an hour to do. Not only that, but it also will give you, as a racer, more setup adjustment and range and allow you to make these adjustments faster. Sound appealing?? Then let’s get started!
Here is what you will need:
- Pro-Line PRO-2 SC Truck/Buggy, PRO-MT or Slash with the Pro-Line PRO-2 LCG kit
- Dremel tool or a file
- Traxxas part numbers:
- 6852x (2 of these they do not come as pairs)
- 2798A (if you did the conversion from a slash you may already have something similar, but these add 1 degree of rear toe).
Here are the steps:
Step 1: Remove the Tranny and rear end of the chassis.
Step 2: Use a file or a dremel tool to grind the chassis away about 1-1.5mm to allow the 2798A to align with the holes the old pivot support occupied. I also had to trim some material away above and below the mounting holes so the arms have room to move freely on the hingepin.
Before 
After 
Step 3: Before you install Traxxas part 2798A on the chassis you will need to trim the front part down ( see pic ) so the front transmission mount ears will mount flush to it.
ATTENTION: The holders ARE DIRECTIONAL, and they actually go on BACKWARDS from the markings molded on them to achieve the proper +1 rear toe. So with the FLAT SIDE DOWN, the L1 will go on the RIGHT and the R1 will go on the LEFT. I found this out the hard way and ended up having to trim my blocks down on both sides and re mark them correctly so I wouldn’t get any more confused :P. So in the pics of them installed, you will see that i have a nut on the back screw to help hold it tight. If you trim the correct way ( like the pics below ), the holder will not need a nut.
Step 4: Reinstall the tranny like normal.
Step 5: Remove the stock CVDs from the hubs and outdrives. Then install the Traxxas 6852x telescopic driveshaft’s and yoke in its place.
Step 6: Reconnect camber link, re-adjust camber, and re-set ride height
That’s all there is to it. A quick, cost effective mod to help get your Pro-Line PRO-2 dialed into the winners circle!
Some facts to know:
The stock CVD driveshaft’s are too long after you complete the mod, which is why the telescopic ones are needed. (PRO-2 vehicles only )
The stock PRO2 pivot support can use either the telescopic HD shafts or the CVD Pro-Line ones.
This mod will add 1* of rear toe-in at the arms and also narrows the rear end up 1-1.5mm per side. Traxxas and other companies offer holders in 0-2* of toe
It also reduces the ant squat to zero, but but with a little more trimming, it can become adjustable in 1* increments up to 2* max by placing washers under the suspension holders where the front screw goes through. 1 washer = 1* of anti squat. Can also add washers in the rear for Pro squat.
This is completely backwards compatible. You can reinstall the original parts with no ill effects.
