put a 36in flattop back on my 379 daycab

^^ no experience; sorry driver. Nice truck tho! Cool about your youngun, also!
ps: I think there was a thread on here somewhere about that a month or so back. Try searching~ . . .

 

I got 4 2013 white 36in flat top 3500$ ur choice I day cabed the trucks for a guy so thy come with everything u need to put them on ur truck sleeper boot inclided
Gray interior thy have heat and AC boxes well windows in the back minor rock dings in the back I can send pic if interested

 

Yes u will need a carrier bearing it just mounts to one of the cross members if ur thanking 300" or more I'd put two in it that's just my opinion
I'm sure there's some one here that goes by book and knows way more than I will ever know
Iv only done a hand full
I just stretched mine to 316" it has 2
Hope this helps

 

By look at the pic of ur dash the mounting hard ware won't work cause the 2013 cabs are higher off the frame
But any ways it's just a few brackets different and I got a few trucks Iv knocked in the head that the brackets are like u need if u was to won't one
See ya

 

The sleeper will the only thing different are the brackets that mount to the frame no big deal
Thx

 

The sleeper will fit a 379 only thing different on a 389 is the hood really I put one of these sleepers on on of my 96s

 

Screw that. Stretch the frame and get one of thesehttp://www.legacysleepers.com