Dual aternator install - 96-2000 6.5 diesel

[great white]

Is there a reason that this wouldn't work for an earlier 6.5 truck?

Wiring will be the same, the earlier trucks have a different accessory bracket setup.

To my knowledge, there was no factory dual alternator setup for the 88-95 trucks. You'll have to make something custom.

Maybe a one up/one down configuration or remove the AC compressor....