This is my first Tamiya build, my first TC build and the first diff build in 20 years. All my prior build experience is on pan cars a long time ago. I ran into a lot of trouble building the diffs.
First problem was my fault since I left out one of the bearings. I figured that out when I was assembling the 2nd diff and saw 3 bearings left when I expected to see 2.
2nd problem was that I did not
notice the twist in the arrow between the diagram of diff parts on left side of block 3 and the center picture of the assembled diff showing the insertion of the spring and long bolt to tighten the diff. I didn't flip the diff before I put in those pieces shown in the center picture.
Of course, I realized my error when I found the dog bones didn't fit right. Too little room on the left side and way too much room on the right [the dog bone just fell out since it went into the diff about 0.5 inches too much].
The twist in the arrow is very subtle and easily missed, at least to me. Is this typical of Tamiya builds?
Us newbies would sure benefit from highlight of some kind saying "don't miss the twist"!
I guess I have to really closely examine the picture for each step before doing it.
I picked the TA05 to use in a new spec class at my LHS. It will basically be a silver can TC class. I read that the TA05 was a good car with a wide "tuning band" that made it easier to setup and drive. I knew I had a lot to learn in my re-entry to the hobby but I didn't expect to be humbled quite so early in the build process.
I fixed one diff and called it a night. I fix the other one tomorrow before I go into work. Gosh I hope I don't stumble again in the rest of the build process!