With 20s, that is!!! 13 seconds (N/A) on 20s ain't bad. :burn:

I'm thinking about going from 3.92 gears to 4.56's.

On 20s with 4.56s, the best tire heighht (from experimenting) is the 305,50/20 or bigger. Since you're a 4by, with 35s, you will dominate!!!

I have my stree tires that are 31.6" tall, then my winter offroad tires are 33.5" so it should be pretty fun.

12s would be even sweeter. ;)

Sure. As soon as DC lets go of the "proprietary" mumbo jumbo there will be much closer competition. Have to settle for nitrous right now for 12s.

i want to get 4.56's in my 05 4.7..how much do you think it will cost and is it worth it?

$540.00 out the door for mr, using Richmond. I'd say they are well worth it!

$540.00 out the door for mr, using Richmond. I'd say they are well worth it!

Of course, a used nitrous kit for about $350-up will yield pretty good results as well. :)

Have one in the Garage!

what are your rpms going 70 niles per hour?

2500. It will only go 140 mph anyways, due to the PCM, so that's good enough for me.

sweet i thought you would max out at 100! nice gears i might get some but what if my tires are 245s?

It pulls strong to 140, then dies. Theoretically, it will go to 170. Drag coefficient and governor, of course will not permit that.

I have 4:10's in mr with the stock 16'' rims and 255/75/R16 for tires. I paid $400 for the gears and $200 for the installation. Most deffinently worth the $$$$$. The response off the line is like the differnce between night and day. At 90 mph my R's are at 3 grand.