Just a quick question. I have a 2004 reg. Cab. f-150 with the 4.6L with 3.55 non slip gearing. I can't spin the tires from a dead stop but, if i put it in reverse i can easily spin the tires with no problem. Why is that?

 

cause the weight shift...

 

The rearend is lighter and when in reverse you are pulling the heavy front end so it will spin. But when going forward you are pushing all that heavy weight.

 

Thanks Dr.Paul
I figured it was someting like that.

 

Thanks Red Lariat

 

I think there is a Higher Reverse gear as well. Not sure what the ratio is....

 

Thanks Red Lariat

 

does anyone know how fast you can go in reverse?

 

i had the same problem. i wanted to peel out by just flooring it. i went to the dealership and they reflashed the pcm. after that i could peel out at every stop. now that i have a k&N filter and an exhaust i cant peel out anymore from a stop. took away too much torque but i have a fast top end now. The other day it was raingin and i was going 60mph and i floored it and i lost traction i was so scared i started to fishtale a little and i almost crapped my pants. it was pretty cool though

 

I do not have the answer to that but....
I must ask, why on earth would you want to know?

 

dont know. i was just curious. it kinda feels like the reverse is geared kind of high. I would like a more low gear for reverse

 

Transmission: 4R75E 4-speed automatic with overdrive

Gear ratios
1st 2.84:1
2nd 1.55:1
3rd 1.00:1
4th 0.70:1
Reverse 2.33:1