Do I need to reprogram with this tire upgrade?
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Junior Member
Joined: Dec 2015
Posts: 7
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From: Milwaukee, WI
Do I need to reprogram with this tire upgrade?
I have a 2006 Lincoln Mark LT 2WD. Currently it has 275/55/18s on it and I'd like to move up to 275/65/18s.
Does this require a computer reprogram?
I believe the 2WD has the 275/55/18s as stock and the 4WD has 275/65/18s as stock.
Does this require a computer reprogram?
I believe the 2WD has the 275/55/18s as stock and the 4WD has 275/65/18s as stock.
Senior Member
Joined: Dec 2005
Posts: 1,594
Likes: 3
From: Nebraska
By the chart I use it will throw the speedometer off 4.1 miles per hour. The dealer can reprogram it if you don't have a programmer, always good to know one of the techs who will do it for free.
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Junior Member
Joined: Dec 2015
Posts: 7
Likes: 0
From: Milwaukee, WI
Understood. My mechanic said a bigger size tire would affect the transmission negatively. How much bigger he couldn't say. This is only going one size up - just don't want to screw up my transmission.