I have one I would love some info on
N71EVBJ5238
WB 184
color M
type N712
body 8A8
trans BL
axle 53M
GVWR 24000
DSO 74

thanks:-)

 

Welcome to FTE!

You have an LN700, so you also have your own thread vs. being on an old F series thread.

N71 = LN700 gas

E = 361 4V XD FT gas V8

V = Kentucky Truck Plant

BJ5238 = 1978 numerical series

184 = 184 inch wheelbase

M = White

N712 = LN700 gas, 24,000 lbs GVWR

8A8 = standard cab without butterfly hood. I do not have the upholstery and seat info.

BL this code combines the transmission code along with another equipment code. Note the engine is marked as "XD". That and this code seem to indicate smog era codes. In prior years this would be an auxiliary transmission code, but B never designates an auxiliary transmission.
B = Fan clutch less sound pkg. or engine less Calif. emission
L = Transmatic (Ford rebranded Allison) model AT-540 automatic transmission. The MPC says this is a 6 speed but it's not. It is a 4 speed. Links below regarding discussions in previous threads.

53M
53 = Rockwell (Timken) model H-172 single speed rear axle, 17,500 lbs capacity, 6.17 ratio
M = 12,000 lb capacity front axle with note: "Optional frame color w/manual steering"

24000 = 24,000 lbs GVWR

74 = Seattle District code

Regarding the transmission. The MPC shows this as a 6 speed. All the other info you can find show it to be a 4 speed.

Go through this thread and find the AT 540 decoded. Post 7 and beyond will show Allison info, the Ford MPC, and several other posts from folks who have experience with the AT540.

https://www.ford-trucks.com/forums/1...ssistance.html