trino...or mark, I wouldnt buy those diff gears personally, if you could buy 2 complete diffs from a different vehicle it would be better. you have to consider that exact measurements are not necessary.

you can compensate dogbone length with o-rings or lil slices of fuel tubing to put in the outdrive cups to keep the dogbones secure. you could also drill new holes into teh alum chassis. It will hold. When my diffs go I will replace them with the diffs from my HPI MT. HPI offers heavy duty gears so I will use those in my MT.

however. I personally feel the 2 speed tranny (smart tech) is very very well engineered. I have a 2speed for my HPI and it cost $70. and it has shred 2 spur gears already at $5 each. I plan on ordering the complete 2 speed tranny from smarte tech and installing that in my HPI.


i want these though
http://www.rcmart.com/catalog/produc...oducts_id=7895