Tenderfoot
New Member
- Joined
- July 28, 2009
- Messages
- 3
- Reaction score
- 0
- City, State
- Seattle, WA
- Year, Model & Trim Level
- 2005 Mercury Mountaineer
2005 merc Mtn.
Plans to add larger than OEM tires on OEM rims, found out sizes via the Search (thanks' to all). however I'm not going with the Max size that fits on stock, going with most likely P245/70 R17 to maintain same width but taller tire (since it doesn't look like much more width will fit or will be very very close)..plus I don't want it to look to funny being max size on stock height. Of course not rulling out a few other sizes. (my chart).
245 65 R17 OEM
255 65 R17 slightly wider and slightly taller
265 65 R17 wider and taller
245 70 R17 OEM width and taller ( I like thise size )
255 70 R17 slightly wider and taller
265 70 R17 Max wider and taller
I do most tire comparisons on Wheelsmaster.com
My main query is, is their any effect other than Speedo when upsizing the tire with AWD ? The '05 Merc. Mountaineer in question is always in AWD unlike the Explorer counterparts. I had some tire shop guy tell me it was a big deal blah blah blah today (goodyear tire place) and I think he was full of crap as to problems with ABS and AWD. However thought I'd bounce that off ya'll since it may have come up but I couldn't find the answer since most tire related questions were only dealing with max size and examples were explorers w/o AWD full time. BTW, the tire shop guy said "no way will you get a 70's series on a Mountaineer"..I left.
secondary question is if I upsize my tires, will an upsized spare fit under ? anyone upsize their spare as well (AWD should be upsized to match but I'm not sure if taller sizes fit under rearend ?
Plans to add larger than OEM tires on OEM rims, found out sizes via the Search (thanks' to all). however I'm not going with the Max size that fits on stock, going with most likely P245/70 R17 to maintain same width but taller tire (since it doesn't look like much more width will fit or will be very very close)..plus I don't want it to look to funny being max size on stock height. Of course not rulling out a few other sizes. (my chart).
245 65 R17 OEM
255 65 R17 slightly wider and slightly taller
265 65 R17 wider and taller
245 70 R17 OEM width and taller ( I like thise size )
255 70 R17 slightly wider and taller
265 70 R17 Max wider and taller
I do most tire comparisons on Wheelsmaster.com
My main query is, is their any effect other than Speedo when upsizing the tire with AWD ? The '05 Merc. Mountaineer in question is always in AWD unlike the Explorer counterparts. I had some tire shop guy tell me it was a big deal blah blah blah today (goodyear tire place) and I think he was full of crap as to problems with ABS and AWD. However thought I'd bounce that off ya'll since it may have come up but I couldn't find the answer since most tire related questions were only dealing with max size and examples were explorers w/o AWD full time. BTW, the tire shop guy said "no way will you get a 70's series on a Mountaineer"..I left.
secondary question is if I upsize my tires, will an upsized spare fit under ? anyone upsize their spare as well (AWD should be upsized to match but I'm not sure if taller sizes fit under rearend ?