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1999 Cadillac STS RIMS? GO BIG OR NOT?

Tiny
RAISEDONCADDYS
  • MEMBER
  • 1999 CADILLAC STS
  • V8
  • 2WD
  • AUTOMATIC
  • 120,000 MILES
I JUST BOUGHT A 1999 STS & I AM THINKING OF GOING WITH A BIGGER RIM MAYBE A 20. I AM TRYING TO FIND OUT WHAT IF ANY COULD BE THE NEGATIVE EFFECTS FROM THAT?
Wednesday, June 3rd, 2009 AT 12:09 PM

3 Replies

Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
Inaccurate speedo, which can cause issues with the PCM, harsh ride due to low profile tires, premature wheel bearing wear due to extra weight/leverage against it. Clearance issues.
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Wednesday, June 3rd, 2009 AT 12:15 PM
Tiny
RAISEDONCADDYS
  • MEMBER
  • 2 POSTS
HOW ABOUT UPGRADING TO AN 18 INCH WHEEL DO YOU THINK THAT WOULD CAUSE ANY ISSUES?
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Wednesday, June 3rd, 2009 AT 12:21 PM
Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
If aluminum, it wont hurt the bearings as bad. You may need to have the PCM programmed for the different tire height to keep the trans shifting at the right time.
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Wednesday, June 3rd, 2009 AT 12:23 PM

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