Dana 50 to 60 swap gear recommendations

[Satchmono]

The 6R80 wasn't made in the 460 bolt pattern, so while there are ways to attach it they are expensive. This one from Speed Gems is $1895 and it doesn't include the required controller for the transmission, which is another $1249. So all up, not including the transmission, you are looking at $3144.

But yes, with the two overdrive gears of .87 and .69 you could easily go to lower differential ratios. But the E4OD has a .71 OD ratio, so you could go with that tranny and still use lower ratios in the diffs. And there's no $1895 adapter needed as the E4OD bolts right to the 460. And there are $800 controllers for it, so instead of $3144 you'd be looking at $800.

HOWEVER, you said you might go with EFI. If you were to go with Ford's EEC-IV or EEC-V EFI system you won't need a controller for the E4OD as the ECU controls both the EFI and the tranny.

So you need to think through the long-term plans.

Are there other EFI systems out there that have just one control unit for both the tranny and EFI that you are aware of?

[Gary Lewis]

Are there other EFI systems out there that have just one control unit for both the tranny and EFI that you are aware of?

The Holley Terminator X Max controls both the EFI and a 4R70W transmission. But that transmission won't bolt to a 460. There may be others, and maybe one that does the E4OD that will bolt to a 460, but I'm not aware of any.

But I think you need to map your plan out before you start or you'll have a less than optimum system when you get done. So if your rear gears are 3.55's you could consider a front axle with anything, as long as the hubs take your wheels, and have new gears put in to match your rear gearing. And while you are at it have a front locker put in.

Or go with the 3.73's but, if I understand correctly, that means the later wheels will be needed, so you need to change out the rear axle as well.

Just come up with a plan, maybe bounce it off others to see if it works, and then stick to the plan.