Are the tranfer cases from a 97 dodge ram 1500 5.9l the same as a 99

Question edited for clarity.
Question moved to model category.

6 wire wiring

https://www.pirate4x4.com/threads/i-need-a-couple-schematics-fuel-lines-and-the-wiring-to-the-pump.1059343/

4 wire wiring

https://www.2carpros.com/questions/dodge-ram-1998-dodge-ram-fuel-pump-electrical-connection

https://www.google.com/search?q=1999+dodge+ram+1500+fuel+pump+wiring+diagram

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dodges run like that. if your worried put a 180 degree thermostat in. maybe even a 160 . wont hurt engine or fuel mileage . my 99 dodge ram 1500 sport runs fine with 160 degree one. hope it helped , good luck

Transmission Failure of some sort

You never replace a transfer case,you repair yours

What your given with the tranfer is a junk yard unit

If your going to put more money into a 16 year old
& badly rusted dodge & they all rust terribly underneath,
then install Jasper Engine & Trans units

Time to part with it,too old,too rusty,& no reason to have
spent what you did

I bought a 1992 dakota new & only did the water pump in over
18 years,then donated to the veterans & took $500 tax credit

lift front axle and place on jack stands. place front axle on 4x4 and rotate wheels by hand. If front axles are harder to turn than normal then remove drive shaft from transfer case and rotate front axle once more. this will let you know if the problem is in the front axle or in the tranfer case

no feul need a tranfer pump or pull feul line lose and turn key switch on if no feul
well bad tranfer pump

either pinion bearings or a wheel bearing,check diff oil level

Sounds like you either have a vaccum leak or your 4 wheel drive actuator is not working to engage the front differential.On my 98 ram there is a black and red plastic lines that are used for the vaccum lines. They are underneath and go from the transfer case to the front axle, check to see if one or both might be cracked or broke completely.If the lines are good then it could be your actuator on the front axle. A new one is about $93 at advance auto parts and not very hard to replace

is your fluid the right grade check shift linkage loose or worn or binding manual shift or bad shift fork or moter on automatic shift

Buy the light and put one wire to ground and run the other to the park brake signal wire and you should be o.k.

Dodge has a TSB on this my 1998 was doing the same thing
have a shop check TSB #19-10-97 fixed mine