How to find info on Dc to Dcc conversion

[Deland]

 I have a Bachmann GP 40 that came in a Rail Chief train set. It's Road Number is 3001. I found a 3002 Road Number from Bachmann that is dcc ready. I'm wondering if this loco is the same? If it is I would like to fit it with a decoder. I'm using a NCE powercab and also have a road Number 3519 that is DCC ready. Is there a preference on decoders when using the NCE or would it be more appropriate to use one matched to the loco?

[bapguy]

 Bachmann makes 3 styles of GP40 locos: DC ,DCC ready and DCC soundvalue. On DCC ready, there is an 8 pin plug on the PC board for a decoder. Take the shell off and see what it looks like inside. It should have a PC board with 6 wires: 2 for the motor,2 for the front truck, and 2 for the rear truck. If it does, NCE makes a good decoder for Bachmann loco's. The train set loco proably has light bulbs. The NCE decoder is for LED's. If you go thet route, buy some 3mm leds.  Joe
go here:  https://ncedcc.zendesk.com/hc/en-us/articles/200945019-BACH-DSL
down load the install manual.