Lee Janssen's TR6 Celica Tranny Conversion

Celica Tranny Conversion

With over 200 HP under the hood the last thing that I need in my car is a Triumph transmission. I've seen too many galled layshafts to want to experience another. The most cost effective solution was to use a Herman van dan Aker Toyota conversion kit. Fortunately a local junkyard has a tranny shack with about 30 Celica trannies. I selected one based on the tightness of the shifter and input shaft. God must have been smiling on me because I selected one with the highest overdrive ratio.

1983 toyota celica 5 speed transmission installed with Herman van dan Akers conversion kit. Transmission Ratios for my 1983 Celica tranny - SN 11109846

gear	1st	2nd	3rd	4th	5th
	3.24	1.88	1.26	1.00	0.781

Steps required to install a Toyota tranny:

remove old Triumph tranny,
remove stock bell housing and output shaft from Toyota tranny,
install new bell housing and output shaft onto Toyota tranny,
install new shifter linkage and new shifter cover,
install clutch and hydraulic throughout bearing,
install new tranny,
limit the range of motion of prop shaft via collar,
bleed hydraulic clutch and drive away.

I really like Herman's conversion. There was absolutely no modification to the sheetmetal or any issues with clearance of the exhaust system (and I have a large custom exhaust).

Conversion Brochure [67k pdf]
Conversion Manual [599k pdf]
Hermans Web Site
Hermans e-mail