Quote:
Originally Posted by arm79
If your car has a 6 speed auto you can't change the tire size without upsetting the transmission.
You have to reset the tire size in the PCM to match the physical, but the size can only be one of the factory spec sizes available at the time. It won't allow you to specify a custom size tire. |
Not too sure that’s right. I run 245/40/19 and 275/35/19 - one size up from the standard 245/35/19. Have had no transmission issues, no weird gear changes, nothing.
On an 18” rim, you can run 245/45/18 with no clearance or other issues.
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The Hammer: FG GTE | 376rwkw | 1/4 mile 11.793 @ 119.75mph 1.733 60' (4408lb)
1 of 60 FG MK1 335 GTEs (1 of 118 FG Mk 1 & 2 335 GTEs).
Mods: Tune, HSD/ShockWorks, black GT335 19” staggered replicas with 245 & 275/35/19 Michelin Pilot sport 5s
Daily: BF2 Fairmont Ghia I6 ZF, machine face GT335 19” staggered Replicas with 245s and 275s, Bilsteins & Kings
FPV 335 build stats:
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Ford Performance Club ACT