Toyota 5 Speed Conversion 2007-2008


 TR6 Home


5 Speed Home

Gear Ratio

Kit Contents

Kit Assembly


Critical Specs

Engine Install

Finishing Up

Interior Mods

W58 Option

Calibrate Speedo




Herman's Kit Contents

A few years ago Herman van den Akker developed a very complete kit for converting a Triumph to take a bolt in replacement Toyota 5 speed transmission. The kit is made up of extremely high quality components with the three "cast" pieces stamped with HVDA in honor of its creator!

NOTE: Things I wish someone had told me................Before ordering the kit, talk to Herman about the type of pressure plate you have or plan on buying. Herman normally supplies a flat faced throw out bearing which will only work with a bent finger pressure plate. Most TR6's have flat finger pressure plates which require a curved face throw out bearing. To make it even more confusing, Borg & Beck makes both kinds of pressure plates. Bent finger pressure plates are very obvious in that the ends of the fingers have a very definite bend to them as seen in the picture below. That's my brand new Sachs Pressure Plate below right. Yes.....I've got the wrong throw out bearing which Herman is swapping out for me. In the meantime I'm set back two weeks which I'll use for doing some more cleaning of the car and painting parts.

NOTE: The curved faced T/O bearing that Herman sent failed immediately and leaked while bleeding the clutch. After discussing options with Herman, we decided to go with his Bent Finger Pressure Plate and the new Quarter Master T/O bearing that he has been testing. I sent Herman the bad T/O bearing and he confirmed that it would not hold any pressure at all.

Bent Finger Pressure Plate Flat Finger Pressure Plate
Flat Faced TO Bearing goes with PP above Curved Faced TO Bearing goes with PP above

The contents of the kit include:

  • bell housing
  • gear shift lever adapter mechanism and housing
  • speedometer cable and mounting bracket
  • transmission output flange/slip yoke and a locking collar for the driveshaft
  • transmission mounts and brackets
  • clutch disk and alignment tool
  • pilot bushing and sleeve
  • hydraulic clutch release throw out bearing with steel braided hoses
The Complete Kit
HVDA Stamped on all 3 pieces
Hydraulic Throw Out Bearing

It's now December 16th, and things are in a bit of a holding pattern until after the first of the year. At that time, I plan on pulling the engine and transmission to allow easy access for the installation of the 5 speed. I'll also attempt to stop some engine oil leaks by replacing various seals/gaskets. Right now my car has an assortment of leak sources including the engine, transmission and differential. Seeing as the Toyota 5 speeds don't leak and the Nissan differentials don't leak, that means I'll have to fix my engine leaks to have a nice dry car.........he said with eternal optimism!

Next........Kit Assembly