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W5M33 Gearbox info

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7 replies to this topic

#1
brisvr4

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Here is some info for those of you brave enough to pull your own box apart :thumbsup:
All info comes from Tim Zimmerman ( twicks69 ) on the dsmtuners forums etc.
He has been playing with these boxes for a long time and knows his stuff people!
http://www.tmzperformance.com/

Here are the specs he has posted. Please don't argue about them, all I am doing is reposting specs which have been proven to work for the various scenarios listed!


The following is for W5M33 AWD 5-speed transmissions:

Ok, stock specs are:

The Preload Setting is listed in SAE (inches):

Input Shaft --> 0.000" - 0.002" ENDPLAY
Intermediate Shaft --> 0.003" - 0.005" PRELOAD
Center Differential --> 0.003" - 0.005" PRELOAD
Output Shaft --> 0.003" - 0.005" PRELOAD
Front Differential --> 0.002" - .0067" ENDPLAY

These are what I normally use:

Stock/Street Transmissions with less than 400TQ at the crank:

Input Shaft --> 0.004" - 0.007" PRELOAD
Intermediate Shaft --> 0.005" - 0.007" PRELOAD
Center Differential --> 0.005" - 0.007" PRELOAD
Output Shaft --> 0.003" - 0.005" PRELOAD
Front Differential --> 0.002" - .0067" ENDPLAY

Street/Strip Transmissions with less than 600TQ at the crank:

Input Shaft --> 0.005" - 0.007" PRELOAD
Intermediate Shaft --> 0.007" - 0.009" PRELOAD
Center Differential --> 0.005" - 0.007" PRELOAD
Output Shaft --> 0.003" - 0.005" PRELOAD
Front Differential --> 0.002" - .0067" ENDPLAY

All out RACE Transmissions that are Rebuilt/Inspected regularly with more than 600TQ at the crank:

Input Shaft --> 0.007" PRELOAD
Intermediate Shaft --> 0.008" - 0.010" PRELOAD
Center Differential --> 0.005" - 0.007" PRELOAD
Output Shaft --> 0.004" - 0.006" PRELOAD
Front Differential --> 0.002" - .0067" ENDPLAY

For Extremely HIGH HP/TQ transmissions (As in ~900-1000+TQ at the crank):

Input Shaft --> 0.007" PRELOAD
Intermediate Shaft --> 0.010" - 0.012" PRELOAD
Center Differential --> 0.005" - 0.007" PRELOAD
Output Shaft --> 0.004" - 0.006" PRELOAD
Front Differential --> 0.002" - .0067" ENDPLAY



These figures are normally what I use, unless a customer has a specific number they want to run for shims.

As well, each transmission rebuilder will shim differently, or not even reshim whatsoever (reusing stock shims). Most transmission rebuilders will not tell you these numbers whatsoever, as this is what makes their transmissions shift like butter with all the other mods that they do to the shift rails, hub and sliders, gears, linkage, etc.

I would recommend using a quality Micrometer that is accurate to 0.0001", and I normally do two or three seperate solder-tests per bearing race and then take the average of each test to see if there is anything out of the ordinary, and then I select the shim by adding the preload figure listed above to the solder average thickness, or subtract the endplay figure listed above from the solder average thickness.

If you need the part number for a shim, reference a factory service manual for all the part numbers of shims for each transmission model.

Tim
Dsmlink V3 + E85 :drool: 11.37 @ 131.46 ... still more in her

Remember Kids... Google does not equal research!
 

Magnus
How much time do you spend in a parking lot with your performance car? If you do a lot of parking lot driving, and hang out in parking lots, chances are you are a ricer, go home and read import tuner. If you’re complaining about noise you should not be modifying your car. You should also consider no longer being a man, please hand in your genitals at the door.


#2
brisvr4

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Gearbox bearing part numbers...
These are the generic numbers for the W5m33 gearbox bearings.
Where the listing says inner I mean the flywheel side of the box and outer means the other end!

Input Shaft:
Outer bearing: Koyo 26118YR1-N
Outer Race: Koyo 26283-N
Inner bearing: NSK HR32205
Inner Race: NSK HR32205

Intermediate shaft:
Outer bearing: NSK R28-9
Outer Race: NSK R28-9A
inner bearing: Koyo 303/28R-N
inner race: Koyo 303/28-N

Center Diff case:
Outer bearing: Koyo LM300849
Outer race: Koyo LM300811
Inner bearing: NSK R41-1g
Inner race: NSK R41-1g

Center diff drive shaft:
Outer bearing: NSK R31Z-11g
Outer Race: NSK R31Z-11g
inner bearing: Koyo 32009JR
inner race: Koyo 32009J

Frt Diff bearings:
Koyo 6207R (Qty 2)

Mitsubishi part numbers for these ...

Input - MD732314
Input - MD726235

Intermediate - MD726236
Intermediate - MD724117

Center Diff case - MD727860
Center Diff case - MD720623

Center diff drive shaft - MD718322
Center diff drive shaft - MD727861

Tim
Dsmlink V3 + E85 :drool: 11.37 @ 131.46 ... still more in her

Remember Kids... Google does not equal research!
 

Magnus
How much time do you spend in a parking lot with your performance car? If you do a lot of parking lot driving, and hang out in parking lots, chances are you are a ricer, go home and read import tuner. If you’re complaining about noise you should not be modifying your car. You should also consider no longer being a man, please hand in your genitals at the door.


#3
Evo-00x

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I love you Tim, in a non gay kind of way of course lol :lol: Great post and it deserves a rep point!
In all the love I forgot to ask a question.... do you know what the difference is between the Mitsu part numbers?

Edited by EVO-00X, 18 March 2010 - 10:03 AM.

AWD. 2 Litre. GTX3076R 0.82.
330kw atw @ 28psi 98 pump fuel.

372kw atw @ 28psi E85 Flexfuel.
EVOLVED AWD COUPE
WWW.EVOCOUPE.NET

#4
brisvr4

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lol Rob! It was sending me mad trying to find the correct info so I could finish rebuilding my box so I figured I had better store it somewhere :)

The Mitsubishi numbers are for the inner and outer bearings, I don't recall which are which but I could always look it up!

Edited by brisvr4, 18 March 2010 - 10:28 AM.

Tim
Dsmlink V3 + E85 :drool: 11.37 @ 131.46 ... still more in her

Remember Kids... Google does not equal research!
 

Magnus
How much time do you spend in a parking lot with your performance car? If you do a lot of parking lot driving, and hang out in parking lots, chances are you are a ricer, go home and read import tuner. If you’re complaining about noise you should not be modifying your car. You should also consider no longer being a man, please hand in your genitals at the door.


#5
ChrisVR4

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Good sources for bearings and shims? Mainly shims!
My bearing shop has had the task of getting me some stuff for like 2 weeks, and i'm over it.

Local Mitsu Parts cant get me the shims I want. I even took part numbers in for them.


Anyone know a good website?

#6
brisvr4

brisvr4

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Talk to Tim at tmz performance mate. His website is in my first post.

Tim
Dsmlink V3 + E85 :drool: 11.37 @ 131.46 ... still more in her

Remember Kids... Google does not equal research!
 

Magnus
How much time do you spend in a parking lot with your performance car? If you do a lot of parking lot driving, and hang out in parking lots, chances are you are a ricer, go home and read import tuner. If you’re complaining about noise you should not be modifying your car. You should also consider no longer being a man, please hand in your genitals at the door.


#7
MDK87

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Info on case numbers, ratios etc. 

http://www.4gtuner.c...-into-e39a-box/

 

 

Centre Diffs

 

http://www.4gtuner.c...=+centre +diffs

 

 

Throwout Bearings

 

http://www.4gtuner.c...gearbox issues


Cable Mounts

 

http://www.galantvr4...&page=4&fpart=1

 

 

General Gearbox Woes (RVR)

http://www.4gtuner.c...gearbox issues

 

 

Evo Gearsets

 

http://www.4gtuner.c...gearbox-ratios/

 

 

Transfer Case Ratios

 

http://www.4gtuner.c...-transfer-case/


Edited by MDK87, 05 September 2016 - 01:09 AM.


#8
MDK87

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METRIC

 

Stock:

 

Input Shaft                      -->        0.000mm - 0.051mm   ENDPLAY
Intermediate Shaft            -->        0.076mm - 0.127mm   PRELOAD
Center Differential             -->        0.076mm - 0.127mm   PRELOAD
Output Shaft                    -->        0.076mm - 0.127mm   PRELOAD
Front Differential               -->        0.051mm - 0.170mm   ENDPLAY


Stock/Street Transmissions with less than 400TQ at the crank:

Input Shaft                      -->        0.102mm - 0.178mm   PRELOAD
Intermediate Shaft            -->        0.127mm - 0.178mm   PRELOAD
Center Differential             -->        0.127mm - 0.178mm   PRELOAD
Output Shaft                    -->        0.076mm - 0.127mm   PRELOAD
Front Differential               -->        0.051mm - 0.170mm   ENDPLAY

 


Street/Strip Transmissions with less than 600TQ at the crank:

Input Shaft                      -->        0.127mm - 0.178mm   PRELOAD
Intermediate Shaft            -->        0.178mm - 0.229mm   PRELOAD
Center Differential             -->        0.127mm - 0.178mm   PRELOAD
Output Shaft                    -->        0.076mm - 0.127mm   PRELOAD
Front Differential               -->        0.051mm - 0.170mm   ENDPLAY

 


All out RACE Transmissions that are Rebuilt/Inspected regularly with more than 600TQ at the crank:

Input Shaft                      -->                0.178mm          PRELOAD
Intermediate Shaft            -->        0.203mm - 0.254mm   PRELOAD
Center Differential             -->        0.127mm - 0.178mm   PRELOAD
Output Shaft                    -->        0.102mm - 0.154mm   PRELOAD
Front Differential               -->        0.051mm - 0.170mm   ENDPLAY

 


For Extremely HIGH HP/TQ transmissions (As in ~900-1000+TQ at the crank):

Input Shaft                      -->                 0.178mm         PRELOAD
Intermediate Shaft            -->        0.254mm - 0.305mm   PRELOAD
Center Differential             -->        0.127mm - 0.178mm   PRELOAD
Output Shaft                    -->        0.102mm - 0.154mm   PRELOAD
Front Differential               -->        0.051mm - 0.170mm   ENDPLAY

 

 


 


Edited by MDK87, 22 August 2016 - 06:32 AM.



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