We test drove an 01 Liberty Classic Lady when we were in Florida last week, and it had the Alison 6 Speed Transmission Retarder. I just loved it.

What is better, Jake Brake, Tranny Retarder and why?

Can you guys give me the pros and cons of having one or the other, please so I can either rule out trying to find a used bus with one or the other in it?

Gary