RE: OFFICIAL CUSTOM NITRO RUSTLER THREAD
The 3.3 is a direct fit for the 2.5 so in order to get the 3.3 into the sport I used the Traxxas 2.5 conversion kit. This gave me the necessary motor mounts and throttle linkage for everything to work. Took me awhile to do the conversion but that was simply because this is my first nitro truck, and I bought it used so had no experience at all with nitro. (I miss the days when evertyhing came as kits, my first truck was a traxxas rustler kit 10 years ago, because i had to put it together from a kit I knew the truck inside and out. In the last 10 years things flip flopped from 90% kits 10%rtr to 90%rtr and 10% kits). Now that I've worked on my truck more I can tear it apart and rebuild it in no time. Still getting use to getting the engine tuned properly though.
As far as the aluminum parts, I got the rustler blue aluminum chasis at my LHS, they happened to have one on clearance for like $15 bucks. The top plate, front shock tower, rear shock tower, and roll bar I got from newera. I had looked around and seen a few other places to order from, including some on ebay for cheaper but decided to go ahead and try the newera parts even though I've heard some mixed reviews.
The rest of my parts should be in this week. Once I get everything assembled and running I'll snap some pics and let everyone know how it performs.