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 TSB-91-00-0003 (adding friction modifier to the manual transmission)
#1036231
10/17/11 04:31 AM
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Joined: May 2005
Posts: 927
OP
Rock Warrior
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As the title states, there is a TSB for 89-91 Monteros and 4wd trucks describing adding friction modifier (ME580150) to the manual transmission. Anyone doing this with theirs? If so, what brand of friction modifier did you use? Just a "generic" one for LSDs or did you go with the specific Mitsubishi product? I'm curious as I bought some "Trans-X Posi-Trac" friction modifier today, but thought I would check the collective wisdom here before adding this to my M/T. Thanks! <img src="/forums/images/graemlins/kewl.gif" alt="" /> Eric W.
'89 Dodge Raider -- 3.0L V6, MT, SWB
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 Re: TSB-91-00-0003 (adding friction modifier to the manual transmission)
[Re: 89IsMine]
#1036232
10/19/11 05:30 PM
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Joined: May 2005
Posts: 927
OP
Rock Warrior
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Hmmm. 64 views and not a single response <img src="/forums/images/graemlins/rolleyes.gif" alt="" /> I guess I'll just have to try it and see what happens <img src="/forums/images/graemlins/cyclops.gif" alt="" /> Eric W.
'89 Dodge Raider -- 3.0L V6, MT, SWB
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Re: TSB-91-00-0003 (adding friction modifier to the manual transmission)
[Re: 89IsMine]
#1036233
10/19/11 05:47 PM
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Joined: Feb 2005
Posts: 2,649
Roll Me Over
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Eric Most of us have auto transmissions so this would not apply. The rest may have not seen the TSB. You're right, try it and see what happens. <img src="/forums/images/graemlins/kewl.gif" alt="" />
Michael j
TreadLightly! Trainer
Grasscat III, 1994 Gen 2 Five speed, Stock ( for a little while )
GrassCat II, 1998 Gen 2.5 Locked and loaded. Ran off with Hector.
GrassCat I, 1991 Gen 1 Ran off with Justice.
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Re: TSB-91-00-0003 (adding friction modifier to the manual transmission)
[Re: Grasscat]
#1036234
10/19/11 06:41 PM
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Joined: May 2005
Posts: 927
OP
Rock Warrior
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Exellent point, Michael! Hadn't really thought that one through <img src="/forums/images/graemlins/smile.gif" alt="" />
Eric W.
'89 Dodge Raider -- 3.0L V6, MT, SWB
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Re: TSB-91-00-0003 (adding friction modifier to the manual transmission)
[Re: 89IsMine]
#1036235
10/19/11 06:42 PM
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Joined: Dec 2007
Posts: 2,348
Body Damage is Cool
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Nothing from me. I have an auto, but interested because I have a 5-speed getting a motor this weekend. Did the plh tuff-pan, but really scared of the thing the way everyone bad-mouths the manual.
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Re: TSB-91-00-0003 (adding friction modifier to the manual transmission)
[Re: Mudraider]
#1036236
10/19/11 06:47 PM
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Joined: May 2005
Posts: 927
OP
Rock Warrior
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Did the plh tuff-pan, but really scared of the thing the way everyone bad-mouths the manual. Ah, it's not that bad. You just learn to double-clutch your downshifts on the gears where the syncros are... questionable <img src="/forums/images/graemlins/cyclops.gif" alt="" /> Eric W.
'89 Dodge Raider -- 3.0L V6, MT, SWB
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Re: TSB-91-00-0003 (adding friction modifier to the manual transmission)
[Re: 89IsMine]
#1036237
10/19/11 07:15 PM
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Joined: Sep 2006
Posts: 2,712
Roll Me Over
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I am a bit late here, why would you want to add friction modifier to a manual transmission?
Most of us want our syncros to actually grip. The friction modifier reduces grip which can do nothing but bad things to a transmission.
Cheers, Charlie
If It ain't broke, Modify it!
87 Montero turbo Converted back in Spring1989
95 Montero SR 3.8 DOHC Only one?
93 Pajero 3 door 6G75 Mivec with paddle shifted 5 speed
Then a Gen2 SR with full coil independent suspension.
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Re: TSB-91-00-0003 (adding friction modifier to the manual transmission)
[Re: OldColt]
#1036238
10/19/11 07:36 PM
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Joined: May 2005
Posts: 927
OP
Rock Warrior
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I am a bit late here, why would you want to add friction modifier to a manual transmission?
Most of us want our syncros to actually grip. The friction modifier reduces grip which can do nothing but bad things to a transmission. I guess it begs the question then of why Mitsubishi would issue a Tech. Service Bulletin specifying the addition of one <img src="/forums/images/graemlins/confused.gif" alt="" /> Eric W.
'89 Dodge Raider -- 3.0L V6, MT, SWB
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Re: TSB-91-00-0003 (adding friction modifier to the manual transmission)
[Re: 89IsMine]
#1036239
10/20/11 12:44 AM
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Joined: Apr 2006
Posts: 228
Wheeler
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Wow <img src="/forums/images/graemlins/zombie.gif" alt="" /> this is new ...never heard of using friction modifier in the trans before. May work, I mean it may make for smoother shifting. Should be no concern for slipping. Synchros in a trans and clutches in a lsd serve totally different purposes. Give it a try, if it doesn't work, drain it out and replace with fresh gear oil. <img src="/forums/images/graemlins/kewl.gif" alt="" />
'89 Raider V6, AT, SAS'ed, Dana 44 front & rear, 5:38 gears, NP 231 T-case.
'97 Montero SR, cold weather package, 4.90 R&P, BATTLEZ suspension w/ 2" lift, JAOS grill guard & under body protection, custom rock sliders.
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Re: TSB-91-00-0003 (adding friction modifier to the manual transmission)
[Re: 89IsMine]
#1036240
10/20/11 01:48 AM
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Joined: Mar 2003
Posts: 2,324
Body Damage is Cool
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I read that bulliten awhile back and we got quite a conversation going. I haven't been on here much lately either.
I think the modifier is to help out with the slow synchros from 1st to 2nd. I just use Redline MTL - 1 or equivalent Amsoil in the trans. The only real important thing is that you "never" use GL5 gear oil as the sulfur in it eats your synchronizers.
dave h.
'89 Raider V6 5spd;Aisin Hubs;; Gen2 LS: frt. brakes, rear coils;U.C.arms;R.trailing arms;idler arm; rear LSD axle w.disc brakes ;2 battery system for Dog's fan; relocated ECU; custom bumpers;J.Baker receiver;Conferr roofrack; t-bar crank.
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