200r4 swap Home Page › Forums › Discussion Topics – Ask the Experts › 200r4 swap This topic contains 1 reply, has 2 voices, and was last updated by 62cutlassconvert 4 weeks, 1 day ago. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts August 27, 2017 at 11:46 am #13029 captiannapalmParticipant what mods. need to be done to the firewall and tunnel I order to swap out the roto for a 200r4 August 27, 2017 at 11:54 am #13030 62cutlassconvertParticipant See the end of the thread Roto-5 Tranny ……… Your Out of There!!!!! that you have posted in and follow 911pilot over to the 6163Skylark site where someone has posted more on a similar swap. Not sure what info he has come up with. Author Posts Viewing 2 posts - 1 through 2 (of 2 total) You must be logged in to reply to this topic.