Ok guys I have a 98 ranger 2.5l 4speed o/d with 3.73 gears in rear end I come out the hole fantastic but when I get to 70 I struggle to go anywhere can yall be so grateful to tell me if I swap rear ends will it go faster and if so which rearend and gears should I put in it P.s. I pull a 5x10 utility trailer every now and again not often Thanks for advice guys