[TR] TR3 Radiator Guard

[Randall]

> the 
> bolts are p/n
> HB0937 (1, accommodates support bracket, distance tube and 
> stiffening bracket;
> 3/8" UNF, 4 and 5/8" long) and p/n HB0926 (3, support bracket 
> to chassis; 3/8"
> UNF, 3 and 1/8" long).

That's correct for a 3A, but I believe a TR3 takes (4) HB0929, which are 3/8
UNF by 3-5/8" long.

The difference is that a TR3A only has one support bracket per side, and
it's considerably thinner where the bolts go through than the two brackets
per side used on TR2-3.

Randall