Mopar Muscle Association UK

Hi fellows,
I'm just , soonish, going to start the rebuild,tuf up of my 727. Its out of the car on the bench.
I checked out the gearbox numbers , and it comes back as a "1976 truck heavy duty long"
Anyone know what the heavy duty could entail, what might I find is different inside ?

numbers are PK 3898864 5211 7989
Thanks
Johnny

Johnny Dart wrote:Hi fellows,
I'm just , soonish, going to start the rebuild,tuf up of my 727. Its out of the car on the bench.
I checked out the gearbox numbers , and it comes back as a "1976 truck heavy duty long"
Anyone know what the heavy duty could entail, what might I find is different inside ?

numbers are PK 3898864 5211 7989
Thanks
Johnny

Nothing much will prob have 4 plate high gear, v 3, poss 4 pinion gears v 3, higher no front band lever, thats about it, the base trans is plenty strong to 500 hp,

Thanks,