the middle drive support is a weak link , if you ever open up the case's that is a must upgrade. the middle drive gear is sending power to the through shaft which the front an back drive shafts hook too . the middle support will bust under the load , the oem is pot aluminum just a bad set-up replace with a billet piece no more worries of braking . also when one lets go it can take out most of the trans gears , through shaft & gears , middle drive gear , bust the case maybe even the crank, very $$$$$ repair