89macrunner

Lately ive been doing some highway driving and ive noticed that my RPMs get pretty high at not too high of a speed. i have stock size wheels\tires so im thinking that theres no speedo error

as of know im at 68-70mph@3000RPM's in 5th gear
is this normal? This is my usual shift point (or lower) and this doesnt seem right to me...or maybe im just stupid..oh well

what are you guys getting with ur 3.0s?

CoedNaked

Sounds like you might have 4.56's. Those RPM's are about par with my truck in 5th gear and I have 4.56's and 31's. I don't know what the stock size tires are on an 89, but are they 31's?

89macrunner

nope they are 265s

kyle_22r

sounds like you might have 4.56s. that'd put you at 2988RPM at 70mph with 265 tires.

89macrunner

Were the 4.56 gears part of a towing package because i have towing mirrors also

Flamedx4

Nope. 4.56 gears came with 31x10.50s as a package, and had nothing to do with any towing package. And those mirrors didn't come on the Runner. You might look at your vin sticker axle code (ignore what it says for tire size, some say 225 when they had 31s) and see what the code says, go here to check it - http://www.brian894x4.com/Gearratiosanddiffs.html
then jack up the rear and turn a tire and count the driveshaft revs to double check. But 3000 rpm at 70mph is in the ballpark for stock tires and gears.

jimbo74

this was the same rpm and speed in my ford explroer with 3.73s and 31s

green91runner

hmm, my 3.0 runs at about 2500rpm in 5th @ 70mph (after adjusting for tire diameter).. don't know what gearing i have.. when i bought it (from the 2nd owner) it had 225s, and now im running 31s

Tofer

sounds about the same as mine... 3.0 with 4.56 and ~3400 at 79 according to the gauge 73 according to GPS

Flamedx4

Thats about right for 4.10s.

89macrunner

so i can get 31s my next tire change with no problems? wahoo

bamachem

lol....

265's ARE 31's...

89macrunner

ahhhhhh im retarded!!!!

Ontos

Pretty close to 31's.....and I'll bet you that a 31" would be a few bucks a bit cheaper than buying 265's. 9 times out of 10, the standard size is cheaper than metric, even if it's a little larger.

photoleif

89macrunner, here's a calculator you can use. well actually a pile of calculators... for the tire dimension one, scroll to the bottom of the page.