I have a 1988 olds ninety eight... Is there an easy way to adjust the speedometer???

Asked by Jul 03, 2012 at 06:25 AM about the 1988 Oldsmobile Ninety-Eight

Question type: Car Customization

I just got a set of tires that are different in size than the ones that came on the car when i bought it.  what i had on there were 205's and the ones that i put on there are 175's.   i been looking on line and was thinking about purchasing an Electronic Ratio Adapter!   can that even be used on this particular vehicle or is counting teeth and changing the ring on the speedometer cable the only way to do this please help me

1 Answer


I'm sure in your 1988 your not going to use an Electronic Adapater, and will need to swap out the Speedo Gear. Why not run the stock size tires and avoid all the hassle?

Your Answer

Oldsmobile Ninety-Eight Experts

  • #1
    Travis Willard
  • #1
  • #3
    Tom Demyan
View All

Related Models For Sale

Used Buick Electra
15 listings
Used Cadillac DeVille
1,268 listings starting at $2,699
Used Lincoln Continental
24 Great Deals out of 2,602 listings starting at $25,900
Used Lincoln Town Car
22 Great Deals out of 1,428 listings starting at $1,850
Used Buick LeSabre
9 Great Deals out of 1,195 listings starting at $799
Used Buick Riviera
95 listings
Used Cadillac Eldorado
282 listings starting at $2,495

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.