6r80 transmission how to#
6r80 transmission install#

I think you will need at least a 1' BL or more for the 6R, it could be very tight fit with only 1' but you could easily raise the flat part of your tunnel height instead of more body lift. My t-case cable shifter had over an inch of clearance with the 4R and now the 6R is touching the cable shifter bracket mounted to the tunnel. The bottom of the 6R is slightly wider than a 4R but the top is over an inch wider and the top of the trans sits higher than a 4R. The 6R80 & 4R70W are almost identical even with 2 more gears in the 6R.

6r80 transmission how to#

I will also describe some of the major drawbacks with one of the bellhousing adapters used to mount it to a SBF and the problems caused by this adapter type & how to overcome some of those design problems.

6r80 transmission install#

I will show pics of most of the modifications I needed to install one in my Bronco. I've used US Shift (Baumann) controllers for 11 yrs. It gives you the best of both worlds- full auto or full manual or both. From shift points, to line pressures, TC lockup or not, to shift harshness, the ability to use the trans in full automatic mode like a 'normal' transmission right down to being able to put it into 'manual' mode and operate the trans as if it was a stick but without a clutch. US Shift Quick6 allows complete control of all functions of the trans. There is currently one reliable controller on the market. The 6R will need a self-contained transmission controller to operate it in a Bronco behind a SBF. There are some very important differences between the 2 styles which I will address later. Currently there are 2 companies making adapters: Performance Auto and Speed Gems. Swapping it into a SBF means using an adapter because the 6R is mated to Ford modular engines (the only one you want for the swap is the 5.0) so the bellhousing bolt pattern is not the same. The 4.17 1 first gear is a huge boost for going slow while crawling or just plain helping you get going with larger tires and a taller gear ratio. The transmission has a 4.17 1st gear and with two overdrive gears, the highest of which is 0.69:1 making this a fantastic off road trans. The 6R has torque converter lockup capabilities in all 6 gears. However, you do not want a 2011 or earlier model as they have several huge issues making them incompatible to a swap. It comes in 2009 through 2017 Ford F-150 pickups and other Fords. The 6R80 trans you want for a Bronco comes from an F150, with a 5.0, and must be a 4x4 model. Ford's 6R80 is a super tough, 6 speed automatic that can easily handle 850/850 RWHP & torque all in a package almost identical in size to a 4R70W