Q: i upgraded from 28.9 in tire to 32.4 in tires. a week later transmission went out, what should i change to relieve strain on trans

asked by on

i upgraded from 28.9 in tire to 32.4 in tires. a week later transmission went out (band went out). Had it rebuit and then 3 weeks later it over heats and burns up 2nd, 3rd, and 4th gear (transmission shop said they don't know why it over heated, I think there was a leak though). Are the larger tires directly related to my transmission issues and if so, should i regear the rear end to take stress off the tranny or upgrade the torque converter? Truck is currently stock with L60e transmission. 2wd. I have noticed that i lost quite a bit of acceleration on take off, like im riding the brakes. truck almost struggles to take off. So I'm not sure if the tires alone will make that big of a difference or if something else is wrong too. Stock rims 15 in alloy with 28.9 in tires, new rims 20 in with 32.4 in tires. the width on the new tires is more too, can't remember how much though.

My car has 278000 miles.
My car has an automatic transmission.

The change in shift points generates added heat in terms of operation. Increasing the tire tire diameter more than a percent or two affects the transmission shift points, as the shift points were programmed based on the vehicle’s original tire size. Consequently, the final drive gear ratio might have to modified to match the vehicle’s current tire size. It would be easier and more cost effective though to revert back to the OEM tire size. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. i upgraded from 28.9 in tire to 32.4 in tires. a week later transmission went out, what should i change to relieve strain on trans

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Can a misfire cause engine not to start?

Hi there. This sounds like it could be an internal mechanical failure. Were there any other symptoms that started prior to the no start? How long has the check engine light been on with misfire codes stored? That white smoke...

Q: I have a 2002 Silverado 1500 4x4 and I have to be pressing the gas to keep the engine from stalling.

Check the coil packs and see if they are producing the voltage needed to keep the engine running. If the voltage is too low, then the coil packs may need replaced. If you have an inline fuel filter, I suggest...

Q: About engine

Hey there. This involves the often heard notion and fallacy of "perpetual motion." Yes, if you or something imparts a big enough force to a powerful enough rubber band you can actuate a piston. But due to the Law of...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...