I just picked up a 22RET Bellhousing for my 854Runner and was looking for info on the R155F 2005+ tacoma transmission. I'm wondering if the RF1A case adapted to the 23 spline would be a good candidate for the R155F? Is this adaption possible or are the rears of the R155F not the same as the older R series transmissions? The only info that I found for the R155F's came from wiki and they are not really credible. Eventually I'd like to convert to a more powerfull newer engine rather than the tired 22re so thats why I'm trying to weigh my options for transmissions.
