1998 jeep grand cherokee

238000 miles on original 4. 0l engine automatic transmission. Needs some unknown sensors replaced. This is for an experienced mechanic or someone who knows about these jeeps. The transmission won't shift into over drive I have run diagnostics and have found its due to a sensor being out that isn't telling the transmission to shift into overdrive. I have replaced the tps and overdrive sensor. Previous owner replaced rear axle with the wrong one it just needs a ring and pinion available at summit racing And then you can put the drive shaft back in and have 4x4. Tires have 80% tread all fluids have recently been replaced. This is my daily in town driver. Mechanically it's sound engine runs great gear wise the transmission is like new. Great little jeep to own at a great price 2000 obo I'm open to negotiations. Must come see to purchase and pick up in person.