Originally Posted by JayL
search the trf415 thread for tryhard, his sig has his website that has a chart for the blocks...
regarding the ta05 parts, check out speedtechrc.com they have an article where the build an ultimate ta05..
Regarding the blocks, basically, the different version are different widths. Firstly, that allows different toe angles to be run, and secondly it allows the track widths of the cars to be tuned as well.
The blocks go (from widest to narrowest)
1E, 1D, 1C, 1B, 1A, 1X, XA, XB, XC, XD
and there is a 0.5deg difference in toe between each one.
If you take as an example the rear of a 415MSX (so zero degree rear hubs, i.e. all the toe in is set on the suspension blocks), say you want to run 2deg of rear toe (which is about right for 27t), now you have a large number of options.
You can either have a wide rear track by using 1X on the front and 1D on the rear, or a narrow rear track by using XD on the front, and 1X on the rear.
The level of toe-in is still the same, but the car width is different.
Generally it's been found that narrower is better outdoors, it gives more grip, and quicker rotation, at the expense of some stability. Indoors (on carpet), it seems that a wider track generally works better, as the car seems more stable.
I've just had a look at a TA05 manual... looks like you need the following to work on your car.
2x TAM53685 Suspension block A-Bridge [these are the ones that go over the belts, so the front-rear, and rear-front block]
2x TAM51065 Suspension block 1A [goes on the front-front block, the one you broke, and the rear-rear]
Thoose parts take your car back to as it was. It doesn't look like there is much option on tuning the track width with a TA05... looks like the most you can do is tune the rear toe in. You'll probably want to get
1x TAM51066 Suspension block 1B
1x TAM51067 Suspension block 1C
That will mean you can also have 2.5 and 3.0 deg of rear toe in.
Hope it helps