Join Date: Aug 2001
Location: Saskatoon, SK
Feedback Score: 0 reviews
Re: F-450 rear end gears
As above, plus I have a '00 450 4x4 that came with 4.88s. To change to 4.30s, I had to change a (front I think) carrier to go with that ratio. Otherwise, IF you have the Dana80HD (don't know about the 110) there are a lot of gearsets available. Buying one from the dealer just means you will be getting the same thing for twice the price. I pull a 26k trailer, and find that I can walk off in OVERDRIVE (0.8555 x. 4.30 = 3.67 equivalent) and low gear with the 4.30s on level ground at idle, grossing 36k - so it tells you how ridiculous the 4.88s were in the first place. If you have a 2WD truck, I would look seriously at 4.10, 3.90 or even 3.73 (will need carriers).
2000 F450 Lariat 4x4 tractor, rebuild at 200k in '12, Air Dog, Reg Mod, HX & HP all in hard SS lines, bypass filter, Banks Power Elbow w/3.5 dp, no intake heat, CCV mod, AIS (w/extra hole), some big Alliant single shots, GP indicator LED, custom 4" exhaust, 4" USG exhaust brake, custom alum. rear diff cover extension (dipstick & temp), Detroit locker, ESPAR D5 aux. heat, custom alum tow deck and fuel tanks, Bushwacker 1 1/2" flares, 9k winch, gin poles, JWSpeaker 8900 LED headlamps in XL grille, Lightforce 240GT (still Halogen, but VERY bright), Hella Micro DE HID fogs, KW = vision plus (Isspro) instruments, more to come & lots of other diesels