Super fast question
 

Which of the HB diffs that mike sells the pro version($65) or the regular ($62) has the lower gear ratio. If i am not mistaken on ratio is in the 4.0-5.0 range and the other is like 3.3 or somewhere in the 3.0's rnge which is it the pro or the regular that has the lower ratio and what is the exact ratio. Thanks

Ok, you want the non-Pro. The Pro has the 4.3:1 ratio and the standard has the 3.31:1 ratio. The Pro's come in the truggies for a lower over-all gear ratio so they don't have to run a huge spur. The 4.3:1 will give you to low of a over-all gear ratio. With the 3.31:1 diffs and slipperential, you will already be using a pretty large pinion.

ok thanks thought so just making sure

Unless you going to a crawler or something.