Brosis Motorsport - Tarmac Rally Mini Drive Train

Summary

After many disappointments, our development paid off and we have found a formula that works for us, giving us the ratios and top end speed we need, can handle the power, and above all – remains reliable.

Gearbox and Drive:

5 speed Jack Knight straight cut involute dog box. 

Straight cut drop gears 1.08:1 ratio. 

Modified Tran-Ex limited slip diff. 

4.1:1 final drive.

MBE drive shafts with GKN Tripode inner joints.

Read about the bodyshell that holds everthing together.