People want s14 s15 NA s Bleach lately smooth power .
You must bolt sr and trans as one to install , recently tried a removable tunnel , to remove seat and pull trans tail shaft into cabin for a clutch job later maybe , I think better than pulling motor and trans and split on ground to do a clutch job ! Not new idea ,Nissan had removable tunnel /floor on early trucks ,(60-64) and Mercedes did this also.