8BA Type Water Pumps ID Car Truck or?

[Phil Gillespie]

So have a standard type 8RT water pump.
And two other similar water pumps both these pumps have the spacer bracket attached to suit engine mounts.

Front casing to pulley centre: 2". wide pulley.

1: Standard Pump RHS. Water outlet to bottom of mount: 1 3/8"

unknown 8BA Type Pumps

2: LHS. Front casing to pulley centre: 2 3/4". narrow pulley
Water outlet to bottom of mount. 3 1/4" with bracket removed

3:RHS. Front casing to pulley centre: 2". narrow pulley.
Water outlet to bottom of mount. 3 1/4" with bracket removed.

Questions.
Pump 2. This pump pulley sits out 2 3/4" is this a truck pump?
Are both pumps 1 & 2 truck pumps due to height from water outlet to bottom of mount.

The pumps 2 & 3 are with an engine to be rebuilt but due to LHS pulley being 2 3/4" to pulley centre as opposed to RHS pulley centre of 2".

Would be grateful for any info. All 3 pumps are 8RT type pumps.
Phil NZ