At Driftmotion.com we offer brand new R154 transmissions, along with upgraded billet shifter housings in 4 different lengths. We also do shifter extensions on MK3 Supra type stock shifter housings for R154 and W58. These upgrades require removing the tail housing for installation, so we wanted to do a basic tail housing removal and installation walkthrough, and talk about some things to look out for.
https://www.driftmotion.com/New-R154-Transmission-p/dm3513.htm