1947 KB3 2016 GMC 3500 chassis

[M4wdFab]

Picked up a 47 KB3 yesterday
have a 2016 GMC 3500 dually chassis for it
have steel and lumber for flat bed


need to unload, organize and see what little bits i need

needs glass
front hood emblem

was a driver 3 years ago
all torn down for rebuild
frame and axles look new lots of good IH parts to possibel flip

[M]

looks like a lot of other neat classics in that barn.

Truck is in awesome condition

[M4wdFab]

bunch of weird stuff in that barn, he owned them all.  some odd balls and some high end stuff. 

truck is pretty solid, was hoping it was in better shape for what i over paid for.  bottom of inside of doors gone, 2 spots in side the cab gone, and bunch of body filler cracking spots on it- meh.  Ill probably end up having to paint fix some areas and paint it. 


found the missing emblem on ebay for 100$ actually (usually they are 2-$350) and need to track down the glass marker lenses.  only found one broken one in the parts crate it came with.  did find the missing head light bezel and windshield hinge out parts. 

listed axles and frame for sale. 

[M4wdFab]

cab, front clip, hood mated


realized today one the inner fenders is missing, that sucks.  didn't see that.
other parts missing: front bumper and front bumper deck piece.  i have a chevy bumper, and can make that other piece i guess. 

found missing hood emblem and glass marker lenses on ebay for not too bad. 

all glass, seals, fender seals available

much more body work needed than i hopped, bah.  probably 10 spots outside and 2 spots inside require metal / fill 

[M4wdFab]

2016 chassis rolled under

some prep and then start lower/cut/lower/cut.  have too look back at my last KS5/2014 build to remind me a few things i did but looks pretty straight forward. 

[M4wdFab]

cab fully mounted and bunch of body work done to top side

started on steering hookup

[M4wdFab]

also noted i searched my entire shop for no less than 45 min for and assumed missing first section of the steering shaft for this 2016 rig i swore that i never removed from the chassis, and then realized i was thinking of one of the escalade chassis still had mounted, and all parts needed were sitting the bench.  bah! 


continuing on tomorrow. 

[M4wdFab]

john got me some pinouts off Alldata
have trans pinouts for canbus hookups /wakeup needed

might be able to fire it today or tomorrow. 

ordered full glass, seals, headliner, radiator

[M4wdFab]

bah first try no start

starter motor is intermittent too but got it so i confirmed it doesn't pop with brake clean

found a 50 page build thread guy did same swap in a c10.  also he has an LS wiring swap thread.

didnt document what he did, bah. 


i had john delete vats. 
wondering if there is more that needs to be done

[M4wdFab]

it seems e78s are hated in the LS comunity lol.


did find one tit bit to try after 2 hours searching!

Just a heads up, if you're running the e78 ecm make sure either your "starter enable relay control" wire from the ecm is either hooked to a ground or make sure your starter diagnostics are turned off in your tune. If not, your injectors will not pulse no matter what you do.

The e78 make sure you turn off the starter diagnostic along with the normal VATS / 02 etc. the starter diagnostic will cause no fuel via the injectors. soon as I disabled that she fired right up.

[M4wdFab]

(C6) C6
(C6) 0.5
(C6) YE/BK
(C6) 625
(C6) StarterEnable RelayControl

[M4wdFab]

thus far"

pin9   6l90 trans  to +12 wake up
pin10 6l90 trans  to tan/bk PCM Bl/Bl pin 29 can bus +
pin11 6l90 trans  to tab     PCM Bl/Bl pin 43 can bus -

connector X2
all pinks to ign 12v
3 red/w to constant power
large purple starter crank

[M4wdFab]

fuel gage specs
Resistance Ohms Empty:   250 Ohms
Resistance Ohms Full:   40 Ohms

[gif]

Something new.  Fun!

https://www.gmupfitter.com/wp-content/uploads/2021/06/Sierra_Silverado_Electrical_Body_Builders_Manual_Service_Manual_2016_en_US.pdf

[M]

holy smokes, 1,600+ pages.