Trust/Greddy FRS/BRZ/86 Dog Box Transmission
 

I had the opportunity to test out Trust Racing's new 86 build for Toyo Tires. The car was equipped with a Greddy Performance 2.1L stroker kit, a Greddy T620Z Turbo kit with 550whp, and the revised Trust Racing 6 speed Dog box.

I won't go into too much detail since the photos can tell a lot but the gear set is made to fit in the stock transmission case.

With a ton of clutch kicks in 4th and 5th gear on Toyo's sticky Trampio R1R, the gear set was basically unharmed upon inspection. 4th gear is the common culprit for those of us with higher HP numbers and sticky tires. We shaved the reverse gear, and made 4th gear a lot thicker.

The gears are helical cut for two reasons. One: its quieter for street use (although i am sure some will say they like the gear whine), and two: helical cut gears are stronger than straight cut gears.

Since I am not a vendor here, I won't mention any pricing, but from one fellow FRS owner to others, I just wanted to let you guys know that we now have an option! no more broken 4th gears!

You can comment below for any questions, or contact Greddy Performance.

How long until the Sbd version comes out?

Anyone have more info on the trans gears?

:w00t: off topic, but what the fuck is going on with those strut mounts?!? Guessing longer lower control arms and tie rods for more steering angle which necessitates moving the strut more outboard?

Got any shots of the front suspension? :D

T__________T

You suck

yep exactly. This car has a wisefab steering kit, which utilizes longer lower control arms. The struts are moved outwards equal distance to the lca.

ill upload more photos of the car in a bit.

Finally! I need this set........

It also relocates the steering rack inside the front crossmember, rather than behind it, and replaces the knuckles.

A mention and some more pics of the dogbox here:

http://greddy-usa.blogspot.com/2016/...uto-salon.html

Trying to get information from Greddy on this dog box has been difficult. Anyone have any info, like price or availability?

@Knshro13

I saw your PM.


Ill get in touch with you.

Ive been getting a few DMs regarding this kit.

I am not a vendor nor am i directly selling these gear sets.

You guys can contact Greddy at 949.588.8300 and ask for either Mike or Kenji.



Meanwhile, here is some info on some questions i have been receiving.

Gear ratios for the gears:

1st 2.6805
2nd 1.8514
3rd 1.4017
4th 1.1529
5th 1
6th 0.8716


At this moment, customs gears are not available. You can however order spare gears or misc. replacement parts.

Here is a list of OEM toyota parts needed to complete the dog box. These parts are order via Toyota parts department.

SU003-03499 6th gear thrust washer
SU003-03923 4th gear washer set
SU003-03521 3rd gear needle roller bearing
SU003-03522 input shaft bearing
SU003-03524 6th gear needle roller bearing
SU003-03525 counter gear front bearing
SU003-03526 output shaft bearing rr
SU003-03527 input shaft bearing fr
SU003-03550 force washer retaining snap ring
SU003-03587 counter gear front bearing snap ring No.1
SU003-03588 snap ring (need 2)
SU003-03640 slotted spring pin
SU003-03641 gear thrust washer straight pin
SU003-03874 gear shift fork shaft no. 5
SU003-03890 force washer retaining ring
SU003-03924 shaft snap ring
SU003-03925 counter gear front bearing snap ring No. 2
SU003-03926 6th gear shaft snap ring
SU003-03927 front bearing shaft snap ring
SU003-03928 transmission clutch hub No.3 shaft snap ring (need 2)
SU003-03908 1st shift restrict ball