Tackometer dont work .i have converted my 6.5 deisel motor to a 5.7 gas engine.my transmission wont change gears,its a 1997 gmc dually 3500 pickup automatic transmission 4+4.left in the deisel computer and added the 5.7 gas computer and wiring harness .runs great everything works exept the tack and transmission wont change. i think they are related but i cant figer out how to hook up tack wire into the deisel harness.any body know how? any help would be gretly appreciated.im pulling my hair out on this one .thanks

Terrell, !998 Durango serpentine belt also fits,
D150 Pickup RWD BaseV6 - 3.9L vin X 239ci 3906cc - MFI GAS OHV
2 vehicles
1992 - 1993
D150 Pickup RWD BaseV8 - 5.2L vin Y 318ci 5211cc - MFI GAS OHV
1 vehicles
1993
D150 Pickup RWD BaseV8 - 5.9L vin Z 360ci - MFI GAS OHV
2 vehicles
1992 - 1993
D250 Pickup RWD BaseV6 - 3.9L vin X 239ci 3906cc - MFI GAS OHV
2 vehicles
1992 - 1993
D250 Pickup RWD BaseV8 - 5.2L vin Y 318ci 5211cc - MFI GAS OHV
1 vehicles
1993
D250 Pickup RWD BaseV8 - 5.9L vin 5 360ci - MFI GAS OHV
1 vehicles
1993
D250 Pickup RWD BaseV8 - 5.9L vin Z 360ci - MFI GAS OHV
1 vehicles
1993
D350 Pickup RWD BaseV8 - 5.9L vin 5 360ci - MFI GAS OHV
1 vehicles
1993
D350 Pickup RWD BaseV8 - 5.9L vin Z 360ci - MFI GAS OHV
9 vehicles
1992 - 2003*
Dakota BaseV6 - 3.9L vin X 239ci 3906cc - MFI GAS OHV
5 vehicles
1992 - 1999*
Dakota BaseV8 - 5.2L vin Y 318ci 5211cc - MFI GAS OHV
2 vehicles
1992 - 1993
Dakota LEV6 - 3.9L vin X 239ci 3906cc - MFI GAS OHV
2 vehicles
1992 - 1993
Dakota LEV8 - 5.2L vin Y 318ci 5211cc - MFI GAS OHV
6 vehicles
1998 - 2003
Dakota R/TV8 - 5.9L vin Z 360ci - MFI GAS OHV
2 vehicles
1992 - 1993
Dakota SV6 - 3.9L vin X 239ci 3906cc - MFI GAS OHV
2 vehicles
1992 - 1993
Dakota SV8 - 5.2L vin Y 318ci 5211cc - MFI GAS OHV
7 vehicles
1997 - 2003
Dakota SLTV6 - 3.9L vin X 239ci 3906cc - MFI GAS OHV
3 vehicles
1997 - 1999
Dakota SLTV8 - 5.2L vin Y 318ci 5211cc - MFI GAS OHV
4 vehicles
2000 - 2003
Dakota SLTV8 - 5.9L vin Z 360ci - MFI GAS OHV
1 vehicles
2002
Dakota SXTV6 - 3.9L vin X 239ci 3906cc - MFI GAS OHV
1 vehicles
2002
Dakota SXTV8 - 5.9L vin Z 360ci - MFI GAS OHV
9 vehicles
1992 - 2003*
Dakota SportV6 - 3.9L vin X 239ci 3906cc - MFI GAS OHV
5 vehicles
1992 - 1999*
Dakota SportV8 - 5.2L vin Y 318ci 5211cc - MFI GAS OHV
4 vehicles
2000 - 2003
Dakota SportV8 - 5.9L vin Z 360ci - MFI GAS OHV
2 vehicles
1998 - 1999
Durango BaseV6 - 3.9L vin X 239ci 3906cc - MFI GAS OHV
3 vehicles
1998 - 2000
Durango BaseV8 - 5.2L vin Y 318ci 5211cc - MFI GAS OHV
4 vehicles
1998 - 2001
Durango BaseV8 - 5.9L vin Z 360ci - MFI GAS OHV
4 vehicles
2000 - 2003
Durango R/TV8 - 5.9L vin Z 360ci - MFI GAS OHV
2 vehicles
1998 - 1999
Durango SLTV6 - 3.9L vin X 239ci 3906cc - MFI GAS OHV
3 vehicles
1998 - 2000
Durango SLTV8 - 5.2L vin Y 318ci 5211cc - MFI GAS OHV
6 vehicles
1998 - 2003
Durango SLTV8 - 5.9L vin Z 360ci - MFI GAS OHV
1 vehicles
1999
Durango SLT PlusV6 - 3.9L vin X 239ci 3906cc - MFI GAS OHV
2 vehicles
1999 - 2000
Durango SLT PlusV8 - 5.2L vin Y 318ci 5211cc - MFI GAS OHV
4 vehicles
1999 - 2003*
Durango SLT PlusV8 - 5.9L vin Z 360ci - MFI GAS OHV
1 vehicles
2003
Durango SXTV8 - 5.9L vin Z 360ci - MFI GAS OHV
1 vehicles
2000
Durango SportV8 - 5.2L vin Y 318ci 5211cc - MFI GAS OHV
3 vehicles
2000 - 2003*
Durango SportV8 - 5.9L vin Z 360ci - MFI GAS OHV
5 vehicles
1997 - 2001
Ram 1500 LaramieV6 - 3.9L vin X 239ci 3906cc - MFI GAS OHV
1 vehicles
1997
Ram 1500 LaramieV8 - 5.2L vin T 318ci 5211cc - MFI CNG OHV
5 vehicles
1997 - 2001
Ram 1500 LaramieV8 - 5.2L vin Y 318ci 5211cc - MFI GAS OHV
5 vehicles
1997 - 2001
Ram 1500 LaramieV8 - 5.9L vin Z 360ci - MFI GAS OHV
2 vehicles
1997 - 1998
Ram 1500 SS/T 5.9LV8 - 5.9L vin Z 360ci - MFI GAS OHV
5 vehicles
1997 - 2001
Ram 1500 STV6 - 3.9L vin X 239ci 3906cc - MFI GAS OHV
1 vehicles
1997
Ram 1500 STV8 - 5.2L vin T 318ci 5211cc - MFI CNG OHV
5 vehicles
1997 - 2001
Ram 1500 STV8 - 5.2L vin Y 318ci 5211cc - MFI GAS OHV
5 vehicles
1997 - 2001
Ram 1500 STV8 - 5.9L vin Z 360ci - MFI GAS OHV
5 vehicles
1997 - 2001
Ram 1500 SportV6 - 3.9L vin X 239ci 3906cc - MFI GAS OHV
1 vehicles
1997
Ram 1500 SportV8 - 5.2L vin T 318ci 5211cc - MFI CNG OHV
5 vehicles
1997 - 2001
Ram 1500 SportV8 - 5.2L vin Y 318ci 5211cc - MFI GAS OHV
5 vehicles
1997 - 2001
Ram 1500 SportV8 - 5.9L vin Z 360ci - MFI GAS OHV
5 vehicles
1997 - 2001
Ram 1500 WSV6 - 3.9L vin X 239ci 3906cc - MFI GAS OHV
6 vehicles
1997 - 2002
Ram 2500 BaseV8 - 5.9L vin Z 360ci - MFI GAS OHV
1 vehicles
2002
Ram 3500 BaseV8 - 5.9L vin 5 360ci - MFI GAS OHV
6 vehicles
1997 - 2002
Ram 3500 BaseV8 - 5.9L vin Z 360ci - MFI GAS OHV
2 vehicles
1992 - 1993
Ramcharger BaseV8 - 5.2L vin Y 318ci 5211cc - MFI GAS OHV
1 vehicles
1993
Ramcharger BaseV8 - 5.9L vin Z 360ci - MFI GAS OHV
2 vehicles
1992 - 1993
Ramcharger Canyon SportV8 - 5.2L vin Y 318ci 5211cc - MFI GAS OHV
1 vehicles
1993
Ramcharger Canyon SportV8 - 5.9L vin Z 360ci - MFI GAS OHV
2 vehicles
1992 - 1993
Ramcharger Royal SEV8 - 5.2L vin Y 318ci 5211cc - MFI GAS OHV
1 vehicles
1993
Ramcharger Royal SEV8 - 5.9L vin Z 360ci - MFI GAS OHV
2 vehicles
1992 - 1993
W150 Pickup 4WD BaseV6 - 3.9L vin X 239ci 3906cc - MFI GAS OHV
2 vehicles
1992 - 1993
W150 Pickup 4WD BaseV8 - 5.2L vin Y 318ci 5211cc - MFI GAS OHV
1 vehicles
1993
W150 Pickup 4WD BaseV8 - 5.9L vin Z 360ci - MFI GAS OHV
2 vehicles
1992 - 1993
W250 Pickup 4WD BaseV8 - 5.2L vin Y 318ci 5211cc - MFI GAS OHV
1 vehicles
1993
W250 Pickup 4WD BaseV8 - 5.9L vin 5 360ci - MFI GAS OHV
1 vehicles
1993
W250 Pickup 4WD BaseV8 - 5.9L vin Z 360ci - MFI GAS OHV
1 vehicles
1993
W350 Pickup 4WD BaseV8 - 5.9L vin 5 360ci - MFI GAS OHV
and maybe a couple more others.
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List Belts 1998 Dodge Durango Reilly Auto Parts
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have it read by a garage ,but hard gear changes is normally down to low transmision fluid ? as for engine light well it could be anything and you need to read the codes

Hey Anon, You are pretty much stuck with what you have now..the only thing else you could change is the rear gear ratios... Just make sure everything works and let 'er rip.. no need to do anything...

nope

Check your transmission fluid, if it is low, the transmission cannot shift into the correct gear from lack of hydraulic pressure. Be sure to check it while the truck is running.

If it is full, you may need to change the fluid and filter; over time the fluid will break down and trash the filter leading to low pressure problems which is why your truck fails to shift any more than 2nd.

Another problem may be that the torque converter is failing to lock yet again from lack of hydraulic pressure or its just worn out.

I had a 1994 chevy pickup that did the same thing and it turned out to be the shift solenoids. Try pulling the codes. My codes lead me straight to the problem.

Yes they will swap out nicely, the years where they made the change is in 1997 and the only difference is the transmission end housing has a different bolt pattern but has the same internal parts. You may also want to swap out the servo's with a corvette servo. The cost is around $45.00 and can be done without dropping the transmission pan, this will make your transmission shift firmer and will have less clutch slip[ between gear shifts. Good luck and hope this information helps. 

Transmission has over heated. Watch it close.

I don't know how much better gas mileage you will get with a gear change. I don't think it will be worth the cost verses saving a couple mpg. The 5.4L engine is kinda small for this size truck. The better way to go would be a cold air intake and an aftermarket exhaust this will easily give 5-10 mpg increase over stock and won't sacrafice any power when towing

Could be heat shield for cadalitec converter, or inside converter has broken loose, or a hainger for your exhaust has broken.