378 vs 379

I was just about to post the same thing.
I purchased a W900L 4 plus years ago and when i test drove it i couldn't believe how well it turned, after i made a deposit on the truck the salesman told me they always advise new purchases with the wider axle, from what i remember it is still a option.

 

Yeah we had one truck that could not out turn an aircraft carrier.

40 acres and a pup trailer and you would only have to back up once to turn around.

 

Maybe keep what you have because you know it and put the wide axle under it. Flip side: if you can drive a truck blindidin with a 42" sleeper shouldn't be a problem. The beauty of a sleeper is storage space for things you might like to carry but don't have a place for.

 

900B with a 20K front end here, and it turns like crap. 242" WB with a 63" mid roof . Get accustomed to turning. Occasionally back up to get around corners or more maneuvering in tight places, where it wouldn't be a problem with a good turning truck. Have to live with it. Bought the truck used, tough to find the perfect truck, second hand? I like the truck and it is great specs for what I do.
As big guns says, having the extra space is great. Carry some tools, a change of clothes, rain suit etc and its not all crammed in the cab beside you. And the bed is there if I want to catch a nap or spend a night somewhere.
Good luck, whatever you decide! Getting a new truck is a lot like getting a new woman. You never know what you are getting until you get it/her home and have it/her for awhile?

 

Someone I know posted on favebook last month or maybe 2 ago that his boss had replaced his steer axle with a 102" long one (likely the extended one mentioned here) really has me thinking about getting mine swapped out at some point. Couldn't hurt fer sure, other than the wallet :/

 

Salvage yard. Rebuild it. Good to go.