I’m not sure if this is the best thread to post this on, but I thought it might help somwhere down the line.
The model codes used on these steel MW cabbed vehicles were introduced to all ERF vehicles in circa 1972, and can be hard to fathom out.
They were introduced to try to simplify vehicle identification in a huge model range for accurate spares ordering (…!!).
No MV cabbed vehicles had these model codes.
First letter is the cab type.
L = 7LV or 8LV fibreglass cab.
M = MW steel cab.
N = MW ‘7MW European’ steel cab.
Second letter is the cab designation.
A = Standard LV cab with set back axle (eg 7LV).
B = Standard LV cab with forward axle (eg 8LV).
C = Sleeper cab with set back axle.
D = Sleeper cab with forward axle.
G = Export special specification cab.
Third letter is the engine type.
G = Gardner.
R = Rolls Royce.
C= ■■■■■■■■
P = Perkins.
Fourth and fifth digit indicates gross weight, and show the vehicles GTW or GVW.
Eg. a LAG320 would be 32 tons GTW. An LBG304 would be 30 tons GVW.
Sixth number is the axle configuration.
0 = 4x2 two axle rigid or articulated.
1 = 6x2 three axle rigid.
2 = 6x4 three axle rigid or articulated.
3 = 8x2 four axle single drive.
4 = 8x2 four axle double drive.
Seventh and eighth number is the vehicle type.
01 = Basic load carrier
02 = Tipper specification chassis.
03 = Truck mixer specification chassis.
04 = Not used.
05 = Load carrier / drawbar equipped.
06 = Tractor unit single steer.
07 = Tractor unit twin steer.
08 = Tractor unit special build.
09 = Ballasted tractor unit.
13 = Special recovery vehicle.
14 = Petrol regulations chassis.
25 = Load carrier / drawbar equipped - A Series.
26 = Tractor unit single steer - A Series.
Codes 25 and 26 identify only vehicles fitted with the ‘A Series’ chassis.
Ninth digit needs a large decode chart, but signifies the wheelbase when applied to a specific model type.
Eg an LAG320.260 would have a wheelbase of 114 inches.
An LBG303.020 would have a wheelbase of 228 inches.
An LBG283.013 would have a wheelbase of 201 inches.
An LBC284.011 would have a wheelbase of 249 inches.
There are some gaps in the ‘seventh and eighth vehicle type’ numbers, but these are the ones I had easily to hand, and will be relevant for most vehicles.