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Old 01-24-2020, 12:59 AM   #4
WoodsWagon
Scooby Newbie
 
Member#: 180769
Join Date: May 2008
Chapter/Region: NESIC
Vehicle:
lots of junkers

Default

You can change just 5th gear without removing the transmission from the car. Rear transfer section needs to come off (shifter & driveshaft too) to get to them but it's doable. The 5th gearset out of a 02 WRX is a lot deeper overdrive.

Sti 6spd is $$$$ and not worth doing on a <300hp car.

Tire speed rating is shown in the code on the sidewall. https://www.tirerack.com/tires/tiret....jsp?techid=35
Another consideration is the age of the tire, which is stamped into an oval spot down near the rim on the sidewall of the tire. Often it's hidden on the inside-side of the tire because of how the tire was mounted on the rim, so you may have to crawl behind the tire and look with a flashlight.
https://www.tirerack.com/tires/tiret....jsp?techid=11

Hauling ass on old tires and beyond their speed rating is a recipe for disaster. If you have a blowout at 100+ it can be hard to correct quick enough to still be on the road by the time you regain control.
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