Does anyone know what the auto transmisson gear ratios are for the 7.3 Diesel and the newer 5 speed Torqshift?

Trying to determine which rearend to go with on next pickup 3.73 or 4.10's compared to existing data, i.e. - 2000 7.3 auto with 4.10's, 50 hp chip, ample power, mileage stinks after 70 mph.

 

Try here:
http://www.clubfte.com/users/monsta/...ainspecsV2.htm

 

Thanks for the link, it is what I needed to answer my question.

Looks like I need to drive a Torqshift to see how it acts, where it shifts mph vs rpm's.

My gut tells me to go with the 3.73's and add a chip to a 6.0 get same power as above truck and better mileage unhooked. Lite loads (4 snowmobiles on open trailer) should be better mileage on the 16 hour sprints out west? Above truck averaged around 9-10 until you get past 70-75 drops off 1-2 mpg's easy.

Any experience with pulling lite/heavy with the different axle ratio's

 

the only gear available in a 250 or 350 SRW is a 3.73 from the factory....



that being said, with stock tires, the 3.73's with a 6.0 up front, what a combo.


and 9-10 mpg, you better be towing 10k @ 70 to get that low.....


when i race my truck, the milage drops to 13...normally, i get 15 or so, that is with a 120 tuner, and 35's and still running stock 3.73's

 

Huh?? I went to www.fordvehicles.com and according to it, they offer 4.10's and 4.30's on a SRW as well as the 3.73.

I don't understand, what am I missing?

 

I am looking at DRW's only.

With winter blend, 20 degrees, 4 sleds, and 75 mph, we only get 8-9 best. Summer, 12-15K pound trailer 8-10 mpg best, just depends on how fast you are going.

P.S 2004 Cummins with 6 speed, Quad cab, 4.10's get's the same mileage over 70 mph.

 

with the psd, AND srw, you get a 3.73, or a 3.73..........


with drw, you get a 4.10


with a 5.4, and a srw, you get a 4.10
with a v10, you can get a 4.30 with a srw.......

 

AH It's a 6.0 thing.. thanks, now I understand.

 

I was able to go to the Ford site and build and new truck with all 3 different axle ratios and a 6.0, DRW's

I found tow/haul ratings for 2004 and 2005 for 6.0's for all 3 axle ratios as well.

http://www.meadowlandford.com/2004-ford-f250-f350-pickup-truck-specs.htm

Please re-check your source. Not bashing just trying to keep it all straight in my head, if that's possible.

 

drw has 2 ratios available, since the "tow commander" option came out, you can now get a 4.30 for a dually..........i was incorrect about the 3.73 being available with the drw, woops.



still, the srw has a 3.73 with a 6.0........no 4.10, no 4.30, and no 4.56