View Full Version : JDM 6 Speed Gearbox "Kit"


Stuart Knight
22 July 2004, 12:13
Want to convert your classic (or new age) to a 6 speed box, I have all you need (apart for the mechanical expertise, obviously)?

Apparently the JDM ratios are the ones to have!

Due to couriers losing it, me buying another, and couriers finding it again (2 weeks later) I have surplus to my requirements:

JDM 6 speed manual box (not surectrac)
6 speed propshaft
6 speed gear linkage
3.9 rear diff

I have been quoted £2500 + VAT for the gearbox (from a well known breakers) and £1800 + VAT from another well known source, and the 3.9 diff was over £200.

Sensible offers please for all of the above (in excess of £1850). I do not want to split the above "kit". Would be preferable to be collected (from Bucks) as it is quite heavy. Parcel2go charged me £55 + VAT for a pallet delivery which is quite reasonable, but then they did lose it for a few weeks.

I also have available:
6 speed starter motor
6 speed clutch and flywheel SOLD
6 speed front driveshafts

Again sensible offers please

Mark A
22 July 2004, 12:42
I spent weeks looking for one of these.

How much for the clutch and flywheel ?

Mark A

simbo
22 July 2004, 12:47
is this the box that chris had for sale{bats wrx}

Stuart Knight
22 July 2004, 13:53
Mark A, make me a sensible offer ;)Simbo, yes it was!

Mark A
22 July 2004, 16:28
I don't have a clue ? £100

Stuart Knight
22 July 2004, 16:59
Mark A, I was expecting a bit more than that :) The release bearing I think is best part of £100, the flywheel is about £500, and the cover and plate about £350 I think. I know they are not brand new but.... The clutch must be able to handle a fair amount of power if they fit it with the 6 speed box

Stuart Knight
23 July 2004, 00:11
Update. We used the release bearing fitting the 6 speed in my box, though I have the one from the 5 speed, don't know if they are the same, I would guess they are.

The 3.9 diff turns (pun intended) out to be a 3.54 unit so will be going back to the breakers tomorrow. I will try and source another 3.9 diff though! I found one so maybe can find another.

Mark A
23 July 2004, 11:40
Stuart

Out of interest what clutch are you using ?

BTTT

Mark

CataIunya
23 July 2004, 12:17
I have a 3.9 diff available if anyones interested.

Stuart Knight
23 July 2004, 12:52
MarkA I'm using the AP clutch I had fitted to my old 5 speed box. It was in reasonable nick, and is balanced to my lightened flywheel, so didn't seem much point in swapping it. Make me an offer around £250 and clucth and flywheel can be yours.

Catalunya, yes I would be interested, how much? Is it an LSD?

-=uk99=-
23 July 2004, 17:55
whats it out of m8 how much and were are you
;)
Trev

Stuart Knight
23 July 2004, 18:45
Trev,

I'm in bucks. The Box is out of a japanese domestic market STi. just the box, gearshift and prop can be had for £1650

cheers

stuart

Stuart Knight
24 July 2004, 11:24
Right, I've got another 3.9 diff, so "kit" status is back on.

This is all you need to convert your 5 speed.

Stuart Knight
26 July 2004, 08:44
BTT

RRE
26 July 2004, 11:15
What is the top speed with this gearbox and a 7K rev limit?

Stuart Knight
26 July 2004, 11:34
Don't know is the honest answer. Quite high I would have thought as the final drive is 3.9, but depends on what the ratio of sixth is. Haven't driven mine yet to know what speed per 1000rpm I will get. I'll post a question in drivetrain, someone will know.

Stuart Knight
26 July 2004, 11:59
Quick search found this:

100mph is around 4050rpm on the JDM 6th.

So about 175 at 7000rpm

P20SPD
26 July 2004, 12:17
Nope its about 160 top speed at 7000rpm with 3.9 diffs

Stuart Knight
26 July 2004, 12:46
I bow to your greater knowledge :). As I said I haven't driven mine yet :(

P20SPD
26 July 2004, 14:07
Tested my JDm too many times :D

gossythevaleter
26 July 2004, 17:12
bet it wont go round corners any better :) :) LOL ok i really need to come see you now ;)

gossythevaleter
26 July 2004, 17:13
Sorry yer i know total muppet just coudnt resist

Stuart Knight
26 July 2004, 17:17
Nothing new there then! :)

talbotsteve
09 August 2004, 23:27
just checking but is the 6 speed gearbox prop and rear diff forsale??
cheers steve

Stuart Knight
10 August 2004, 09:28
Sorry all bits sold

CataIunya
14 August 2004, 09:53
Steve if you need a rear diff I have one....

dij
15 August 2004, 00:03
Steve if you need a rear diff I have one....
Is it the same as an sti 5?


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