ZF S6-650 vs Allison
 

Which of the 2 transmissions would you rather have for pulling a gooseneck trailer? I found a 2003 Duramax with the 6speed manual and I was wondering if they are as good or better than the Allison for pulling?So If anybody could help me out it would be greatly appreciated.

With modern automatic transmission technology I see no reason at all to ever get a manual unless you jut prefer them.

I don't prefer them they are just cheaper to buy.It's in my price range so I thought I might as well take a look.

I hate shifting, but some like it and that's about the only reason it's even offered anymore.

As far as quality, both are great.

Operating cost has a big role too. You shouldn't have to rebuild a manual in 500,000 miles, if you can drive it properly. Clutch should last you a long time as well, and compared to the rebuild price of an Allison your talking pennies.

But what about pulling capabilities is the ZF S6-650 manual capable of beating an 01 Dodge Auto?Because If I can beat the Cummins dad owns I might be able to pay for it alot faster.

in my experince i like autos because you can put it in drive then just worry about were you are driving. Allisons are desighned for pulling so they can take the abuse but motoroilmcall has a good point since a manual is going to be cheaper to rebuild

Yeah that is part of the reason for getting one.Plus with the 6speed you put that truck in 1st gear 4H or 4L and I bet it would pull it out better than the Dodge.

I think you will find that most of us that have one are bias and love them. I had a 01 Dodge with the 6 speed and i prefer my Duramax Alli combo hands down. The Alli is extremely simple on the inside and even someone with some halfazz mechanical ability can rebiuld it. The parts are fairly descently priced aswell. You will get many trouble free miles outa it.:rocking:

Yeah I would get the Duramax Allison combo but it's out of my price range and this one is close 30miles away and is cheaper at $18,500 with 60,000 miles.