Banks Speedbrake on a Duramax

Lenny K wrote:

MARKW8 wrote:
Thanks for the replys. Went to Summit Racing this evening and ordered it. $608.00 plus tax. Just got the speedbrake with no extras.

Mark

Mark, I tow in the medium setting and found that when going down a real steep incline I can force a downshift by quickly turning it to the high setting and back with no use of the brakes. The brake is very aggressive in the high setting.