The Ford Barn - View Single Post

rotorwrench · 02-11-2019, 02:04 PM

There have been several folks ask this question for early F100 pickups. It is do-able but like any conversion, it will take some ingenuity on your part. The RTS pickup transmission has the butterfly pattern bolt up like most top loaders. Getting one to bolt up to a Y-block bell housing will be the lions share of work. The Tremec RTS also has part of the old Borg Warner narrow pattern but only three of the bolt locations are usable. Some folks weld ears on the bell housing to pick up the bolts and others fabricate a bolt on adapter. Bolt on adapters may also require a spacer on the flywheel so that could be problematic in this application.

I've not tried it so I have little more to add and few have responded to this question with much more information than this. The parts for this transmission are not well supported so what ever you find needs to be in good condition. They are popular in the model A crowd and some have been set up for the later V8 cars & pickups with closed drive. A vehicle with open drive like the F100 would save some of that effort for sure. The Type B transmissions coded as follows; AD, AE, AJ, BJ, BP, BU, BV, BZ, & CS all have the 26.7% overdrive reduction and are the best ones for V8 applications. They were always mounted on the 302 V8 pickups in the years that they were available from 1984 through 1986 plus some early 1987 models.

02-11-2019, 02:04 PM	#2
rotorwrench Senior Member Join Date: Jun 2010 Location: San Antonio, Texas Posts: 17,411	Re: Transmission Conversion? There have been several folks ask this question for early F100 pickups. It is do-able but like any conversion, it will take some ingenuity on your part. The RTS pickup transmission has the butterfly pattern bolt up like most top loaders. Getting one to bolt up to a Y-block bell housing will be the lions share of work. The Tremec RTS also has part of the old Borg Warner narrow pattern but only three of the bolt locations are usable. Some folks weld ears on the bell housing to pick up the bolts and others fabricate a bolt on adapter. Bolt on adapters may also require a spacer on the flywheel so that could be problematic in this application. I've not tried it so I have little more to add and few have responded to this question with much more information than this. The parts for this transmission are not well supported so what ever you find needs to be in good condition. They are popular in the model A crowd and some have been set up for the later V8 cars & pickups with closed drive. A vehicle with open drive like the F100 would save some of that effort for sure. The Type B transmissions coded as follows; AD, AE, AJ, BJ, BP, BU, BV, BZ, & CS all have the 26.7% overdrive reduction and are the best ones for V8 applications. They were always mounted on the 302 V8 pickups in the years that they were available from 1984 through 1986 plus some early 1987 models.