what is the best replacement 3.73.? I got 6 inch. lift, 35s.5.4 engine towing 20ft.toy haulers, trailers every now and then. I usually tow all my trailers with f350. and this is the first time I'm gonna use this truck for towing. is it 4.11 or 4.56? thanks.

 

what motor ......this info would be helpful

 

35's and towing= 4.56 no question

 

4.10s for 33/highway...4.56 for city/towing all day

 

x2!

I couldn't be happier with my 4.56's...

 

4:56s

 

Definately 4:56s

 

4.56 if you tow occasionally. If you are constantly towing, 4.88s would be a good option.

 

thanks everyone