Need opinions.....3:55 or 3:73 gears ?
Currently I have a 95 4x4 with 4.9 inline 6 cylinder, 5speed.It came stock with 3:08 and 29 inch tires.Now I have 31 inch tires.I drove my friends 93 f150 with 3:55 I was impressed and I'm leaning towards them.What do you guys think.Thanks
I am not sure what size tires you friend had on his truck, but the 3.73 and 31" tires will handle about the same as a 3.55 and 29" tires. So, for your application, go with the 3.73. And, just a note (you probably already know this), don't forget to change the front gears or you will destroy the transfer case and some other things.
redbeard, My daily driver is a 88 F150 with 4.9 and 5spd. The engine makes tons of torque at low RPM.I run 3.55 gears with 31/10.50/15 BFG. tires and I would recomend 3.55 gears for yours. I think 3.73s would make your engine rev too high at highway speeds, and you might have a hard time finding 3.73s for the front end.
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82 F-100 2wd short bed . C6 410 posi 466cu. Lunati,Stealth,holley,TCI. HANG ON BOYS&GIRLS
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82 F-100 2wd short bed . C6 410 posi 466cu. Lunati,Stealth,holley,TCI. HANG ON BOYS&GIRLS
I have a 92 ford F-150 that came with the 3.55 gears and I switched them to the 3.73 gears because I was running 33inch tires . I have the 5.0L engine and the 5 spd manual, but I felt little difference bewteen the two.If you need a place to get gears I found the best prices at West Coast Differential.
I have the 3.55 with 31x10.50's and it does fine. I just bought a boat weighing about 2800 lb and haven't pulled it out of the water with the 31's yet, but for day to day driving, I will stick with the 3.55's. I would recommend going to the 3.73 since you are investing in gears. Someday you may decide to go with larger tires and you don't want to change gears again.
go 4.10's or go home 
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TRUCK
White 00' XLT 4.2 Auto Sport
Regular cab Styleside
3.55 non-limited slip
Superchip
Airaid FIPK
custom ported STOCK throttle body
1/4 ... 17.221@81.35MPH
PC
Thunderbird 1.1ghz @ 1.33ghz
Abit KT7A-Raid
384mb Kingmax PC-150 ram
60gig IBM 75gxp RAID array
Geforce2 GTS 64mb

------------------
TRUCK
White 00' XLT 4.2 Auto Sport
Regular cab Styleside
3.55 non-limited slip
Superchip
Airaid FIPK
custom ported STOCK throttle body
1/4 ... 17.221@81.35MPH
PC
Thunderbird 1.1ghz @ 1.33ghz
Abit KT7A-Raid
384mb Kingmax PC-150 ram
60gig IBM 75gxp RAID array
Geforce2 GTS 64mb


