transfer case compatibility

scout79

New member
Hi I own a79 Scout with 345 > 727. Dana 20 and would like to know if a Dana 300 will easily bolt up to this combo {minus the Dana 20 }
 
Sure, if its a Scout d300 and you have the correct bull-gear.

Jeep d300's take more work, but can be done by changing the output shaft and housing on the tranny.
 
Currently I still have the Dana 20 in
is the bull gear replaceable?
As in bolt on and off press etc or do I need a new gearbox output shaft thanks
 
Rmove the (5) bolts that hold the d20 on and the bull gear is sitting there held on with a big nut to the output shaft of the tranny.

Remove that nut and the bullgear comes right off.

Scout d300 mounts the same way, but with only 4 of the 5 bolts and has its own, specific bullgear.

Jeep d300 (more common, typically slightly cheaper) uses a more common 6-bolt "round pattern" and a female "inputs" shaft arraignment, so no bullgear. But like I said, you then would need to change the tail shaft housing and output shaft of your tranny (tear down) to adapt it.

On the plus side, switching to the 6-bolt "round" pattern does open up a much broader range or transfercases and doubler options vs the Scout "texas" pattern.
 
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