Re-gearing and speedometer

[velasquez.huaa]

well at this point in time i am now certain i can clear 35x12.5x17's but im currently running 285/70/17s, i was wondering if anyone has re-geared the rear end on a 4th gen 4runner and how difficult it would be or the write-up for it would be lovely, also does anyone have the fix for our speedometers when bumping up in tire size :crybaby:

 

[black4vcobra]

I also want to know as I'll be installed different size tires in the next couple months.

 

[truckhigh]

i have done a lot of research and if i were you i would just sub it out. i am a very capable mechanic and can't justify all the one time use tools. I also priced out that the work is a little over $200 if you remove and install it yourself. here is a link of what is involved in re gearing.

Toyota Gear Installs
eastcoastgearsupply.com

I haven't regeared yet because i do a lot of freeway driving and its probably gonna hurt me more in gas.

 

[ebg18t]

Look up the speedo healer. A few folks have used that to correct the speedometer.

 

[BlackWorksInc]

Some days I wonder why I bother writing stuff if people never find it... lol
[MENTION=126906]velasquez.huaa[/MENTION]

http://www.toyota-4runner.org/4th-gen-t4rs/178078-speedohealer-v4-4th-gen.html

As for re-gearing, it's not too bad a deal depending on how big (ring gear wise) you go. Usually you want to do both front and rear differentials so that in 4WD the transfercase isn't working too hard; but starting with the rear first shouldn't be too bad.

Post Note-

I have not done the math, but I don't know if re-gearing will affect the speedometer as much as changing tire size does since it uses wheel speed for the data value. Anyone actually done the math on this?

 

[velasquez.huaa]

I'm sorry, but that write up is perfect, thank you!

Some days I wonder why I bother writing stuff if people never find it... lol
[MENTION=126906]velasquez.huaa[/MENTION]

http://www.toyota-4runner.org/4th-gen-t4rs/178078-speedohealer-v4-4th-gen.html

As for re-gearing, it's not too bad a deal depending on how big (ring gear wise) you go. Usually you want to do both front and rear differentials so that in 4WD the transfercase isn't working too hard; but starting with the rear first shouldn't be too bad.

Post Note-

I have not done the math, but I don't know if re-gearing will affect the speedometer as much as changing tire size does since it uses wheel speed for the data value. Anyone actually done the math on this?