Best 4r70w rebuild kit for 72 Bronco with 450 hp

[Rpr72BSport]

Best rebuild kit for 4r70w for 72 Bronco with 450 hp

 

[73azbronco]

I'd look to Hughes. In fact, if you have money and time let them rebuild it.

 

[drherr1]

I can't give a recommendation for rebuild kit but I would highly recommend Transmission Bench, the videos and recommended upgrades are excellent They do sell kits and Sonnax upgrade parts. I recently rebuilt and installed a 4r70w in my Bronco and am extremely happy with the results, I have a Blueprint engines 306 with 365 HP.

 

[turbotim2]

I would second transmission bench for the videos however the parts ordered from transmission bench were literally shipped from Whatever It Takes transmission parts.