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2007 Tahoe 20" Wheels

24 messages,  Last post on Jul 26, 2009 at 5:24 PM

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#14 of 24 rims by ockevin Jan 30, 2007 (12:18 am)
I ran 24" rims on my 2001 tahoe with no problems I ran 285/40/24 Pirelli tires with no rub.....Your dealer is full of it. I would not deal with them , as their ignorance will hurt you in the long run.
#15 of 24 Anyone with 22's? by diesel70 Feb 13, 2007 (10:34 am)
We just purchased a 2007 Tahoe, my question is what is the best size tire to put on the 22's I have. The Tahoe is stock height with no plans to rasie or lower (maybe the rear) to level it out. I don't want to hack or cut any part of the wheel well. I've had a few different people tell me different sizes and I'm leaning towards 305/40 r22's but I was wondering if 45's would work. The rim is the Martin Bros Slickstar's. Any other recomendations are appreciated, I just want the best ride with no rubbing. Thanks in Advance. Replies to this message: valvestud (Feb 13, 2007 1:03 pm) beach15 (Feb 14, 2007 5:57 am) diesel70 (Feb 14, 2007 10:17 am)
#16 of 24 Re: Anyone with 22's? [diesel70] by valvestud Feb 13, 2007 (1:03 pm)
Replying to: diesel70 (Feb 13, 2007 10:34 am) Take a look at the Cadillac website. They have a 22" option and I assume it would indicate tire size.
#17 of 24 Re: Anyone with 22's? [diesel70] by beach15 Feb 14, 2007 (5:57 am)
Replying to: diesel70 (Feb 13, 2007 10:34 am) Looks like TireRack recommends a 285/45/22 to maintain the stock overall diameter (and therefore keep the speedo and all in check). They tend to air on the conservative side, at least as far as tire width, so you likely could do a 295 or 305 in conjunction with a shorter sidewall.   Here's a good comparo for sizing: http://www.1010tires.com/TireSizeCalculator.asp   From past experience with Avalanche's, 305's MIGHT rub a tad in full turn and/or compression, but I'm not completely sure. Should be fine, but you might also get more substantial data from either a wheel/tire shop or other online boards. Replies to this message: diesel70 (Feb 14, 2007 10:17 am)
#18 of 24 Re: Anyone with 22's? [beach15] by diesel70 Feb 14, 2007 (10:17 am)
Replying to: beach15 (Feb 14, 2007 5:57 am) Thanks for replies but I'm going with 285/ 45's the more rubber between the rim and road makes for a better ride. Thanks again for the info.
#19 of 24 Replacing 17's with 20's by toecutter May 22, 2007 (2:17 pm)
well I just got a set of 20s for my tahoe from flea bay. 1,650 shipped.   The dealer told me I would need the trans Recalibrated,     and the sensors re learned. well I did the sensors myself, no big deal.   but I was also made aware by the guy I bought the set from that, the 17's and 20's measure the same when on the vehicle, about 31" from top to bottom.     so I don't need no stinking trans recali.     the wheel is larger but the tire shorter which in turn, ends up being the same height as the 17s that was on there.   the dealer wanted an extra 220 for this recalibration job   crooks!!!   just to be on the safe side, I tested the deal against the mile markers on a nearby Road and all's cool plus the tahoe looks awesome with the brushed 20's on   Replies to this message: harrybackman (Sep 04, 2007 8:09 pm) 73shark (Sep 13, 2007 6:50 pm)
#20 of 24 Re: Replacing 17's with 20's [toecutter] by harrybackman Sep 04, 2007 (8:09 pm)
Replying to: toecutter (May 22, 2007 2:17 pm) You guys are killing me, do any of you know the difference between width and diameter?   first number is width in mm, to convert to inches, divide by 25.4.   second number is sidewall ratio (to the width) ie 55 = 55% of the width   third number is wheel diameter.   so to calc tire size for - say a 305/50/20 you would say   305mm / 25.4 = 12" wide x .50 x 2 (two sides to a tire) plus 20 (wheel diameter) = 32" diameter tires   now you can run 15" wheels with 35" tires if you have a high sidewall ratio (lots of rubber vs lots of wheel), see the difference?   my 07 silverado crew cab just got a 2" leveling kit, i tried 305/55/20's and they rubbed when i turned, so i cant go quite that big, either have to go down to 285 wide, or to 50 sidewall.   any questions?
#21 of 24 Re: Replacing 17's with 20's [toecutter] by 73shark Sep 13, 2007 (6:50 pm)
Replying to: toecutter (May 22, 2007 2:17 pm) I believe the recalibrating for 20s will also update the ABS algorithm for the increase in rotating mass. Believe me those 20s are heavy. Just rotated mine and thought I was going to need a forklift.
#22 of 24 Upgrade from an 17" to 20" rim by christalry Feb 08, 2009 (8:00 am)
I am wanting to upgrade from the 17" OEM rim to the 20" OEM polished rim that GM offers. I keep getting different answers as to whether or not the computer reprogramming will take care of any potential problems I may have with the ABS, Speedometer and gas milage indicator. Each dealership I've called has given me a different answer and one basically said that it isn't worth it.   It seems that if I were to get a 20" rim with a lower profile tire that the overall diameter would be the same. I just do not want any issues with ABS or to void any warranties. Any suggestions would be appreciated. Replies to this message: obyone (Jul 26, 2009 5:24 pm)
#23 of 24 by 73shark Feb 08, 2009 (4:44 pm)
If the OD of the 20" tire is within a couple of percent of the OD of the 17" tire, then the error is probably negligible. Not sure the same can be said of the extra mass and the ABS.

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