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DIY Transmission Re-Build Tips

Old Jun 26, 2009, 06:11 AM
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Question DIY Transmission Re-Build Tips

Has anyone worked on there own transmission? I am getting ready to drop it after I found a part of a tooth stuck to the trash magnet. I noticed Team Rip sells parts for this so that shouldn't be hard to procure the parts to fix it. I have worked on many FWD/AWD dsm transmissions. But I have had a manual to give me specs and such.

Anyone got any tips on this? My main concern is when I split the case will something fall out that I don't know where it dropped from


Any input would be appreciated.

Please don't reply with the "Send it to (insert favorite transmission shop here)" that is not constructive to what I am trying to do.
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Old Jun 26, 2009, 06:15 AM
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I would think if you have seen one DSM trans that they can't be too different. All the diff trannies I have worked on worked the same way and had the same parts.. If you know your way around one and have a manual--go for it, can't hurt--its already broken!
Old Jun 26, 2009, 06:55 AM
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Thanks, BTW does anyone know where I can get a digital version on the Factory Service Manual?
Old Jun 26, 2009, 09:20 AM
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Originally Posted by kickin wing
Thanks, BTW does anyone know where I can get a digital version on the Factory Service Manual?
Yes there is, I got mine from myrollingroad.com, its a huge file but its got everything
Old Jul 11, 2009, 06:54 AM
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Well I got my transmission apart and found my noises
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Had some gremlins in the transmission with a hammer. This is the ring gear on the center diff there were between 6-8 teeth that had some kind of damage it was really weird also because to output shaft does not have a scratch on it. Shep Transmission hooked me up with a new gear. first thing I noticed about the new gear was that the leading edge of teeth have been radiused to take the sharp point off. I am thinking this should help with low speed trans noise and on the old gear there were a lot of edges missing

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This transmission is ALOT easier to take apart than the old 1g/2g AWD transmissions

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Old Jul 11, 2009, 06:59 AM
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nice! how long did it take you?
Old Jul 11, 2009, 08:53 AM
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It was cake took longer to get the transmission out
Old Jul 12, 2009, 12:39 AM
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nice i wonder how hard it is to replace the synchros..
Old Jul 12, 2009, 12:48 AM
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very nice if u made a how to that would be awesome i dont have much experience with transmissions and that would be helpful for many im sure
Old Jul 12, 2009, 12:58 AM
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These transmissions are cake to work on, Remember there is no front diff in them like the dsm's since the evo front diff is in the t-case.
Old Jul 12, 2009, 10:58 AM
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I'm going to attempt to do a write up when I rebuild mine here in a week or so. Let's keep this thread alive!

Can someone post or pm me (so I can host) the transmission dis-assembly/assembly pages of the Mitsu FSM?
Old Jul 12, 2009, 12:46 PM
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thatd be sweet.. for simple rebuilds that dont need to get sent out
Old Jul 12, 2009, 06:42 PM
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I got the manual PM your email addy
Old Jul 12, 2009, 07:38 PM
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If you need any input or advise LMK.. I've rebuilt 3 of these now, going to do 2 more in a few weeks.
Old Jul 12, 2009, 10:50 PM
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Here is a pic of my last 9 trans I had apart,
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And of course the reason I had to pull it
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