Tranny swapability question

[J. Lyons]

Hello all,

Along these same lines, any BTDT on the feasibility of adding the taller
fifth gear to my 84 CGT Turbo tranny? 4000rpm at 80mph is getting to be a
little much. My 86 4KCSQ does damn near 100mph at 4000 rpm. I would like to
keep 1st thru 4th gears where they are (hauls ass off the line) and use
fifth mainly for freeway cruising/top end. I have a spare 84 tranny I may be
rebuilding in the near future w/a Quaife diff and hopefully a more practical
fifth gear!

Regards,
J. Lyons
84 CGT Turbo
86 4KCSQ
79 5KS

~"I'd like to know if it's possible to swap an 85-86 5ktq tranny in place of
a 4kq "US" code tranny ... my tranny is a particularly short ratio type, I'd
like to put a 5ktq locker tranny in my car as it has taller gears and allows
for higher top speed as well as lower RPMs at legal highway speeds "~