ANSWERS: 3
  • Well here is the answer. First you might not like to hear about getting rid of those gears but thats what you need to do. My neighbor has the same gears and the gas mpgs are horrible. Unless you are doing some heavy towing like a 4 or 6 horse trailer or like spending big bucks in the tank you don't need them. Thats why you have 4 or 5 gears to shift to as needed. If its a 3/4 or 1 ton put in 3.73 with a 5 speed and you might get 16-18. Cut your gas consumption in half. Makes your engine last longer since it doesn't have to turn so many revs per mile and they pull very well with a manual trans. Besides the top end on 4.56 is about 70 floored! Running at nearly top rpms will ruin your engine quickly. I hope this helps. Henry ....41 years experience.
  • are they both electric speedometer if not the tail of the trans cant be switched out or youll fry the speedo if they are cable speedo then go for it it will work no problem you might need to modify the trans crossmember and driveshaft but its smoothsailing from there on out good choice please rate this answer
  • The five speed will work in the truck, Although i am not sure on the speedo weather cable or electronic but if the 241 out of 90 is electric then find an mid 80's 208 transfer case and it will bolt up to the 5-spd; the np241 and the np 208 are inner change able.

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