i have a 1990 w250 with a dana 61 front, 70 back, with the 3.07 gears because i have the auto. looking to trade axles for axles. i need 4.10 gears either for a first gen cummins, or a 14 bolt rear with 4.10's and 60/61 cummins passenger side drop front with 4.10's. i POR 15 coat my axles to stop rust and have always kept good fluid in them. they do need new seals if i do not get them fixed already by the time anyone asks. thanks