hello, i know my 06 ram has the 3.92 gears and am currently running the stock 275/60 20s. many talk about upgrading gears when going bigger on tires. i have a 2wd and its basically only a street driven truck and was looking at the nitto 295/60/20 terra grappler. would this size be ok with my current setup? plan on a 1.5" level up front also. i do not want to have to regear if i don't need to. they also have a 275/65 tire as well but thought going a tad wider would look nicer. ??? thanks

 

I have 35/12.5 r20s on mine with the 3.92 and they turn alright. Im planning on upgrading gears eventually but they arnt that sluggish at all and i have a 4.7

 

thanks. and i have the hemi too so thats gotta help too. hey matt99, how much did you did you take a hit in the mpg department?

 

Im getting 8 city 12 highway. I was getting 16/20 before the body lift and tires. So a huge hit lol I drive the car ALOT more now

 

wow. that mpg hit is more like getting hit with a baseball bat to the head. man that hurts. now im rethinking if the 275/65 would be better for mpg.

 

If it helps, I lifted my old 03 4.7L QC 6 inches and put 35x12.5's on it and got around 9mpg with 3.55 gears. After changing out the rear to a 4.56 ratio, my MPG's went back up to around 14mpg in the city, 18 on the highway, so it wasn't too bad... Gears make a huge improvement in mpg especially with a 4.7L equipped truck.

 

I say sell them.................only because I am looking for a complete 3.92 setup! lol



Any tire shops have a set of used tires that size you could try out first? then decide????