Luke111
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- #61
I just bought the 33" BFG A/T on a OME 2.5 lift - they run great. I have heard other have regretting going larger because it has effected street performance and they had to change speedometer gears etc.
33" tires are a great size, it's basically the same as the 295/75 that I'm running and I did get the gear to calibrate the speedometer
From Slee's Site
Installing larger tires will cause your speedometer to misread. The speedometer correction gear can partially correct for that.
The standard speedometer drive gear on the 80 Series has 32 teeth. The speedometer correction gear has 31 teeth. Using the correction gear, the correction is 3.2% faster.
The most common size tire installed to gain extra clearance is 285/75R16. When the diameter of this tire is calculated, it comes to 32.8". The stock tire size is 275/70R16, which equated to a 31.2" diameter. So when installed the larger tires, your speedometer will read 57 mph when you are traveling 60 mph. Using the correction gear, your speedometer will read 58.9 mph.
Best Lou