JDM box with LSD

Dev · July 29, 2019, 18:59

Quote from: Carolyn on July 29, 2019, 18:35From the transaxle number on m the chassis plate JDM car, my gearbox is a C50. End of.

Im not doubting that and they could have used an earlier transmission for the MRS since the car may have been introduced earlier before they switched to the C56 if that was the case. The C50 is a much older transmission.
From my information and from other evidence Japan used the C56.
We have many importers of JDM transmissions that are sold here like this one.

https://www.ebay.com/itm/JDM-Toyota-MRS-MR2-Spyder-1ZZ-FE-C56-5Speed-Transmission-VVTi-1-8L-2000-2005-1ZZ/113091320845?fits=Model%3AMR2+Spyder%7CMake%3AToyota&hash=item1a54c49c0d:g:OfYAAOSw91hbLT9M

Carolyn · July 29, 2019, 19:04

Anyway, before the thread went sideways, I was giving a heads up the the gearbox might be available and I'll be seeing it tomorrow, in case someone wants it. Mind you, one of the 750 club racers has probably bagged it already....

Dev · July 29, 2019, 19:10

Quote from: Carolyn on July 29, 2019, 19:04Anyway, before the thread went sideways, I was giving a heads up the the gearbox might be available and I'll be seeing it tomorrow, in case someone wants it. Mind you, one of the 750 club racers has probably bagged it already....

You should check the serial number on it for confirmation. It would be interesting to see what it actually is.

Carolyn · July 30, 2019, 14:02

The box is still there. C50 with LSD.

Dev · July 30, 2019, 14:22

Quote from: Carolyn on July 30, 2019, 14:02The box is still there. C50 with LSD.

I think I understand the confusion.

C50 referes to a series of transmissions. C50 also refers to one of the variants of the transmission in the C50 family.

What makes it more confusing is that on the bell housing on some C50 series transmission can have a C60 stampings.

The JDM transmission is a C56 of the C50 family. The C50 transmission is much older and not used on the JDM MR-S for the manual transmission. It is actually used for a brief period on the MR2 Spyder SMT.

Im referencing your previous post where you have indicated that your transmission is a C56 on post 10.

The C56 is a very common transmission that we have in North America.

MannyUK · August 6, 2019, 08:52

I thought all 5speed boxes on the MR2 had an LSD? if so is this one different?

Carolyn · August 6, 2019, 08:56

All Euro MR boxes do have LSD. Most Japanese import boxes don't.

Newbie57 · August 6, 2019, 09:07

Bit confused why I'd the he JDM box with LSD so desirable. Different gear ratios?

jonbill · August 6, 2019, 09:08

Quote from: Newbie57 on August 6, 2019, 09:07Bit confused why I'd the he JDM box with LSD so desirable. Different gear ratios?

because it's got an LSD and the JDM gear ratios and final drive ratio.

jonbill · August 6, 2019, 09:10

Fwiw, I checked my UK car and MR-S over the Weekend. My UK car has C52 and the MR-S has a C56, as stamped on the engine bay plate.

Dev · August 6, 2019, 15:05

The C56 transmission is the most common transmission for the MR-S, Spyder as well as some other Toyota products, and it is not an exclusive JDM transmission. It comes with an LSD as an option in some markets.
In the US the LSD was an option for the last two years the car was offered.

In the US at one time you could buy this transmission new at the dealer with and with out the LSD. Its not a special transmission and it has many of the issues that is shared with many of the other variants being a bit weak particularly the third gear and the synchronizers which can fall out of alignment or the input and output bearings failing.

If you guys are interested in this transmission you can probably do a trade with the US market because many on my side want the Roadster transmission because it is far more exotic.

Dev · August 6, 2019, 15:08

Im sorry to belabor the point and cause offense to others as it is not my intention to do so. I just want to point out information that may be of benefit by chance some come across this transmission in another market and are interested in its attributes over what you have come to believe on anecdotal experience to come to some sensible conclusion that it may not be built better for the Japanese market.

househead · August 6, 2019, 19:28

Long thread with lots of info here, but what I want to know is ... did anybody take this up and obtain the rocking horse poo gearbox?

If none of our members are going to make use of it, I may purchase it and keep it in reserve for a rainy day when I start to use my 2 on the motorway less.

Carolyn · August 6, 2019, 21:25

Quote from: househead on August 6, 2019, 19:28Long thread with lots of info here, but what I want to know is ... did anybody take this up and obtain the rocking horse poo gearbox?

If none of our members are going to make use of it, I may purchase it and keep it in reserve for a rainy day when I start to use my 2 on the motorway less.

As far as I klnow, Dean still has it.

househead · August 6, 2019, 22:00

Sent Dean an email so hopefully will bag this depending on cost.

househead · August 6, 2019, 22:27

Almost instant reply ... he sold it earlier today unfortunately. Hoping it went to one of our members!