I have two trucks. 85 bronco and 95 f150. Bronco blew up it's parts are going on the 95. My current trans -m5od will be replaced with np435/np208. How hard will this be. Besides cutting hole in floor for 4x4 shifter. Also a few side questions. On the np435 why is 1st gear such a far movement of the shifter. Second on the np208 I can see a metal ring that looks like a big spring. Or if u know what a bearing seal ring/spring looks like than that's what I'm talking about. Howcome I can see that. Also should I keep my rear end or switch to the bronco one. Worries are I lose my mph guage. If I keep my stock 95 rear axle I'll have 3.31 gears rear 3.55 gears front.