I thinking about ditching my 4.10 and going with some other gears for better mileage. I really do not haul anything over 7000. I have an auto and was thinking 3.45 range.
yep id go with the 3.55's. mine has 4.10's and i went up to a 35" tire and gained about 1 mpg. unless your towing 10k+ or plan on running big tires, id stick with the 3.55's [img]/ubbthreads/images/graemlins/wink.gif[/img]
yup you can do 355 easy but you'll be in third at any hill, you will not pull it in OD.
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1997 F250 FireTruck Red,CC SB,auto( Prescion TC, HD-2Tugger),5" exhaust, custom Swamp 195cc Hybrid injectors, TWildman 4-pos chip,open air cleaner, I/C w Banks intake, 225,000km,AIC,dual electric fans,Sky mfg RSK w/ D60w/ARB locker,Ramsey 15k# winch, BFG/AT 315's, F450 rear springs, home of Craig's Performance Diesel pictures
" lying is a cheap way out of reality, the real cost is the loss of respect and trust"
I have 355's on my 97 F350 and tow 3-4 tons of feed on a hvy trailer and I run in OD if I am going 65 and it pulls most hills fine. If running slower I drop back out of OD. With what I tow I wish I had 410s but since 4x4 do not want the expense to change over.
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1997 F350 3" down pipe, chip, and gauges 161,000 miles, extra 65 Gal fuel tank form Transfer Flow
2001 E350 101,000 miles
How do i find out what ratio i have in my truck i'm unsure everybody tells me different.I am considering going to the ZF5 also and i don't know if it would be a problem if i have a higher ratio.
Rusty
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2000 F-250 Lariat Extended cab Short bed Black/Tan
6sp, SB OFE,Bd exhaust brake,Road Armor Front bumper w/warn 9.5ti
6 inch Fabtech Lift, 35X12.50 Bfg muds, Afe Intake
Pyro-boost-oil press in A pillar,ats 4inch turbo back to 36" 6" tip,
banks six gun stacked on edge evo http://www.myspace.com/138012953
I pull all the time with my 97 with 3.55 I'm allways over 15k with it never had a problem pulling a load the good thing about 3.55 I can take it out of od and still do 65.
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00 CC, LB, DRW, Black F350 4x4, 6 speed, lunar series Boost and EGT. DP tuner 6pos chip SBC clutch,fuel system. GTP 38R BB, by Diesel Inovations. Weld Typhoones rims, Tymar filter,CCV mod and TERMINATOR OIL.
97 CC, SB Green F250 4x4 5 speed, SBC clutch, F5 DP chip, Isspro boost, EGT.Stage II sticks, Tymar, CCV mod, TERMINATOR OIL, Banks pipe kit IC, fuel system, GTP 38R BB Turbo, Weld Typhoones
07 Dodge CTD, QCSB, Dark Gray 4x4, 6 speed, Tinted windows and a B&W hitch, MBRP 4in, AFE Stage 2 Progaurd 7, Centerline Wilderness Grizzly, Smarty CR, Quadzilla Commander, Fass 150, sbc , head studs so far a MPI twin turbo ,DDP 90hp tips also. It still smokes a little
hills maybe with stock siz tires, try 35's with mountains, not those rolling 400 foot things, we call those bumps, I mean a 45 min 2-9* climb over 2500 ft up, that's a pull.
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1997 F250 FireTruck Red,CC SB,auto( Prescion TC, HD-2Tugger),5" exhaust, custom Swamp 195cc Hybrid injectors, TWildman 4-pos chip,open air cleaner, I/C w Banks intake, 225,000km,AIC,dual electric fans,Sky mfg RSK w/ D60w/ARB locker,Ramsey 15k# winch, BFG/AT 315's, F450 rear springs, home of Craig's Performance Diesel pictures
" lying is a cheap way out of reality, the real cost is the loss of respect and trust"
To shorten the answer re "which do I have now?", on the door tag under "axle" a '35' is 4.10 non-LS, '39' is 3.55 non-LS, C5 is 4.10 LS (posi), C9 is 3.55 LS. Those are about all the options you're likely to find on a pickup.
Josh
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'96 F350 XLT CC 4x4 PSD auto LWB 4.10 open, white, open intake, Tymar HX, 3"DPP downpipe, 315 Toyo A/T (2nd set - got 55k from first set) on factory Alcoas, big front bumper w/4 really bright lights; F add-a-leaf, new alt x3, fuel pump, water pump, t-stat, fuel heater, vac pump x 3, PS pump x2, SD starter, rebuilt seats, total poly bushing kit, serious noise reduction, new tan interior and vinyl floor, Bilsteins, Bean's Stage 1s, Tony Wildman 4-pos chip (wow), etc ad infinitum, black Lab in backseat, locally rebuilt tranny & new TC @ 211k, complete body 'makeover' and repaint @ 213k, 233k and counting...
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