Lift and bigger tires speedometer off Will it do damage

• hello everyone I’m wondering if people can help me. I recently lifted my 2015 Toyota Tacoma to a 6 inch lift I also got 18 inch wheels and 35 inch tires. I know my speedometer is going to be off I’m wondering is that going to do damage to my vehicle being that the speedometer is not reading correctly. I live in New York and there’s not too many places around here that do I guess they call it tuning where they correct the speedometer so that way the vehicle registers the right miles per hour. Doesn’t bother me that the miles per hour off I’m just wondering if I need to get the vehicle tuned so that way the miles per hour correct. Or is it going to Damage my vehicle or transmission in the long run. Can anyone help me. I have a 2015 Toyota Tacoma TRD sport

 

Only damage that could happen would be the tires self clearancing your fenders and fender liners (you probably won’t have much issue with a 6” lift and city driving). You could expect some additional wear and tear on driveline components but I would not worry about that too much.

Speedometer will not take damage, but yes your vehicle will be traveling faster than indicated. Your actual miles traveled vs odometer will also be off.

 

http://www.hypertech-inc.com/SpeedometerCalibrator.aspx

With the amount of change you have going on, I'd install one of these.

You don't need a 'tuner'.

But I see a new set of differential gears in your future.

 

Plug in the factory tire size and the new tire size and you'll get an idea how much off the speedometer is at various speeds. It is possible to reprogram the trucks computer to account for small differences, but probably not this much. If you're speedometer says 70, you're doing 80 now. It would probably have been a good idea to ask this BEFORE modifying the truck.

Anytime you go with larger tires and lifts you are operating outside what the truck was designed for. The more you vary from factory, the more quickly you wear out parts. Wheel bearings, ball joints, universal joints, shocks, and many other suspension and drive line parts are now out of spec. and will wear out sooner than before. Also you've effectively changed the axle ratios forcing the engine and transmission to work harder. The amount of weight you can haul and tow is reduced.

Making minor changes doesn't have much effect. Factory tires are 30.5" tall and as long as you stay around 32" you can get by with very few modifications and any excessive wear will be minor. The bigger you go, the more it costs to do it right. With 35" tires you really need to regear both the front and rear axles. A lot of guys even swap out the light duty axles for axles off 3/4 ton trucks to handle the bigger tires.

 

Suspension, axles and wheel bearing will have a shorter life. But other than the speedo being inaccurate, you're not hurting anything else. The actual mileage vs the indicated mileage will vary some over time.

 

Was this accomplished with a drop bracket lift?

If yes, then IMHO the damage was done when the frame was cut.

 

Thanks buddy

 

Thank you all for your advice and comments I’m going to look into re-gearing when I can afford it. Also yes I should’ve asked that question before I did the lift but it’s been something I’ve been wanting to do for a while didn’t think about it. Again thank you all for your quick responses and your support feels good to know that I can Count in other taco members for advice

 

Only thing I can think of is you may have a VSC issues after that big of a lift.
Most people don’t have issues with it. But most aren’t running 6” lift.
You can recalibrate it if it comes on too soon.
As wether you should recalibrate it or not after the lift, I am not comfortable saying.
I personally haven’t done it. And don’t know many who have or have had to.
Maybe the guys running lift will help you on this.


https://www.tacomaworld.com/threads...ibrate-your-vsc-computer-the-easy-way.467485/

 

Regear would be a must and next investment if I ran 35s.

 

With 35's you could probably compensate at hwy. speed by running in a lower gear. Won't do anything for the take off & pulling power though.