Competition Transmission for sled pulling

[sparks57]

I've noticed that most sled pullers (I might be wrong though) use the NV4500.



Why, when the nv5600 is so much beefier, would all you guys use the 5 speed?



Also, how is the NV4500 upgraded to handle the power? Just billet shafts with all the fifth gear updates?

 

[BWillard]

I might be wrong but it's probably a weight issue. Nv4500=197lbs vs. Nv5600=360lbs. Most guys around here want use the lighest truck they can get to pull in the lighter classes such as 6200lb and 6500lb class.

 

[Cumminsman]

it's a lot cheaper to put a 1 3/8ths" input shaft ,the fully splined mainshaft and a new fifth gear than swap one over to a six speed. the six speed is a little tougher imo. and u have more gear options to pull in.

 

[Got Smoke?]

Dave Mitchell = 6spd

Kent Crowder (Schied Truck) = 5spd

Haisley = can't remeber exactly but thinking. . 5spd

 

[Cumminsman]

Dave Mitchell had the 5 speed until middle of last year

 

[HoleshotHolset]

Loretta's (Dave's wife) truck has an NV-5600 in it as well.



Matt