i got a good deal on a 91 with a 4.0, 4x4, 5 speed, automatic transfer case, with transmission code "M". Its dropped third gear, so im looking to swap in a transmission. I have somebody that will sell me a transmission out of a totaled ranger, which is an 88, 4x2, 5 speed with the 2.9, transmission code "M". What all is going to have to be changed? Is the bell housing bolt patern the same? Will i have to swap tailshafts?

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Currently: 98 ext. cab stepside, 3.0, 5 speed, Westin brush guard, roll bar, 2 Hella spotlights and 2 Walmart floods, 2 "fog lights" in the grill, Cobra cb, Flowmaster 40 series, cold air intake, General Grabber AT/2 31/10.50/15's
Soon to come: Lock-right, hurst shifter, manual hubs, snorkel, more lights rock sliders, hi-lift jack,3 inch BL, 4 inch suspension lift, explorer 8.8 L/S, re-gear, winch, front reciever