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I hated that trans for the entire time I ran it(75k mi.). On 31x10.50 km1's, and the torque converter felt a little weak/slipping toward the end, too.


Thanks, Danny. Mmmmm. <img src="/forums/images/graemlins/frown.gif" alt="" />

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If that's the V4A51(INVECS-II) that I had in my 01 Sport, it's the one that-well, here's copied from Wiki-

Adaptive Shift Control software which monitored and "learned" the driver's habits over time and adjusted the smoothness or aggression of the gearshifts to suit his or her driving style


"1999 4X4 3.5L trans is compatible with only 1999 to 2000 (to 9-2000 production date) V4A51 models"

I don't think the '99 actually had that. When I've talked to the techs, I got the impression the adaptive stuff came latter.

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Maybe it's just the way I drive, but it never seemed to work the way I expected.

Off-roading was the same way, I never seemed to be in the gear I needed to be in.


I have this in my '03 Limited, but that's the Montero 5-speed A/T. It is SUPER annoying, but A/Ts in general irritate the crap out of me. 30 years of driving a M/T. <img src="/forums/images/graemlins/smile.gif" alt="" /> BTW, the techs said they made big improvements in '04 - just in time to stop makeing them. <img src="/forums/images/graemlins/rolleyes.gif" alt="" />

On the other hand, I've had it off road both in CO and UT. Never had any issues with gearing. Drop it in 1st and that's where it stays. But, again, totally different transmission.

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My 2 cents, swap the aw4. Parts are more available, run the manual controller, be in the gear you need. Put your resistors in to fool the computer and have no trouble codes.


Thanks again, Danny. So, what you're suggesting is run the Rail II shift controller with something like the TCM-2000 Transmission Controller for the TCM?

Sorry, another stupid question: Does your cruise control still work?

Emailed a shop here in Denver that deals with PCS, A/Ts & t-cases and does builds/rebuilds to get me a $$ figure on a complete assembly with everything wired. Should be interesting.

Edward

Last edited by ES_97Sport; 08/11/15 11:29 PM.

'97 Montero Sport LS 5-Speed 3.5L conversion
SAS Dana 44s & ARBs, 35" Yoko Geolandar M/Ts
NP231 B4R doubler/Terra Low231/RP 5.38 229:1
'99 Montero Sport Limited 4WD SAS 3-link project
'03 Montero Sport Limited AWD
'97 Montero Sport LS 5-Speed 4WD