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35" to 37" considerations

jadmt

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My 35s are E rated and the 37s I was looking at are C rated. Different brands as well. I will say that I'm going by published information. Is reality different? I don't actually know.
you are correct and I have found My 3 sets of mickey thompsons to weigh what they are supposed to and my bfg's have also weighed what they are supposed to..the EXP is lighter than either of the other baja boss mt and at in 37's. I almost went with those but ultimately went with the bb at and glad I did. the extra weight and size going from a 35 mickey bb mt in 35 which weighed 71lbs to the BB a in 37 which weighs 80lbs has not been negative at all.
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Richard_JL

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he EXP in 37 is actually 70lbs per mickey thompson...they are lighter and run on the small size. the ko2 in 35 E is 66.7lbs according to bfg.
The MT site itself shows the 35's are 71lbs. The same site shows 37's at 79lbs.
 

jadmt

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The MT site itself shows the 35's are 71lbs. The same site shows 37's at 79lbs.
you are looking at the wrong tire...he said the baja legend EXP go to the bottom and you will see it is 70lbs the 35 is 64lbs


TIRE SIZE /
EQUIV. SIZE
LOAD
RANGE
SIDEWALLSERVICE
DESC
MEAS RIM
APPROVED RIMS
MAX LOAD
MAX INFL
O.D. IN.SECT. WIDTH IN.TREAD WIDTH IN.TREAD DEPTH 32NDSAPX. WT. LBS.MATL #.PART #PRODUCT CODECROSS REF#
LT265/65R17
31X10.50R17LT
ERWL120Q8.0
7.5-9.5
3085 lbs @
80 psi.
30.810.68.818.5502475315271033105600390000067175BUY
LT265/70R17
32X10.50R17LT
ERWL121Q8.0
7.0-9.0
3195 lbs @
80 psi.
31.910.88.418.55427248527248533129500390000119686BUY
LT275/70R17
32X11.00R17LT
ERWL121Q8.0
7.0-9.0
3195 lbs @
80 psi.
32.510.78.818.55527248827248833129600390000119687BUY
LT285/70R17
33X11.50R17LT
ERWL121Q8.5
7.5-9.5
3195 lbs @
80 psi.
33.111.59.118.55727249027249033129700390000120113BUY
LT305/65R17
33X12.50R17LT
ERWL121Q9.0
8.5-11.0
3195 lbs @
65 psi.
32.912.39.918.5602475395273233106400390000067179BUY
LT295/70R17
34X12.00R17LT
ERWL121Q8.5
7.5-10.0
3195 lbs @
80 psi.
33.611.89.518.5592475485274233107300390000067180BUY
35X12.50R17LTDRWL119Q10.0
8.0-11.0
3000 lbs @
50 psi.
34.512.910.018.56427240427240433130300390000120115BUY
LT315/70R17
35X12.50R17LT
DRWL121Q9.5
8.0-11.0
3195 lbs @
50 psi.
34.612.810.018.56227240627240633130400390000120120BUY
37X12.50R17LTDBLK124Q10.0
8.0-11.0
3525 lbs @
50 psi.
36.413.110.018.57027252427252433130500290000120116
 
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scorpionsix

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My original inquiry was/is suspension related. The weight of the two tires in question has been established to be 2-3 lbs of each other. Negligible. I am wondering if raising the axle by 1" but with very similar tire weight will have any profoundly negative impact, as well as any other suspension parts that may be negatively impacted by the 1" increase in ride height. With the current lift and keeping with the same tire width, rubbing ought not be an issue. I understand that perhaps a very long term experiment consisting of tens of thousands of miles would probably be necessary to gauge wear on suspension components in this scenario. Is anyone aware of anything specific?
 

jadmt

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My original inquiry was/is suspension related. The weight of the two tires in question has been established to be 2-3 lbs of each other. Negligible. I am wondering if raising the axle by 1" but with very similar tire weight will have any profoundly negative impact, as well as any other suspension parts that may be negatively impacted by the 1" increase in ride height. With the current lift and keeping with the same tire width, rubbing ought not be an issue. I understand that perhaps a very long term experiment consisting of tens of thousands of miles would probably be necessary to gauge wear on suspension components in this scenario. Is anyone aware of anything specific?
I switch back and forth from 35x10 on stock wheels with 1" spacers and the 37's on AEV bora the weight difference 20lbs per....I do not notice a difference as far as suspension...when I go from the 35's I do not notice a seat of the pants power difference however when I go from the 37's to the 35's I feel a power difference for a little while and then it is back to normal...I switch back and forth out of boredom but definitely looks better and performs better offroad with the bigger tires.. my mpg is within tenths...my suspension is designed to handle 37's so no issues from that aspect of things..
 

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My experience with the Mickey Legend EXP was not great. They were a very loud tire on road and not especially great off road. Wet traction was mediocre to poor. My best experience with an AT or RT type tire remains the Mickey BB AT.
 

WXman

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Regarding tires "not running true to size" which comes up all the time on forums... tires DO run true to listed size. The issue is that the way the manufacturer measures is on a specific width wheel, at a specific pressure, including the bulge of the sidewall. You and I measure totally differently with our own wheels, our own pressures, in a straight line, typically with the weight of the vehicle on the tire. So of course we're going to see less diameter than the manufacturer listed.

Regarding putting 37s on a Jeep, my main concern would be making sure the computer is calibrated for the new diameter of the tires. That doesn't just control transmission function, it also controls ABS function, sway/traction control, speedometer reading, and a lot of other things. If all the onboard modules know the Jeep is on 37s the vehicle will be a lot happier and parts will last longer.
 
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scorpionsix

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Regarding tires "not running true to size" which comes up all the time on forums... tires DO run true to listed size. The issue is that the way the manufacturer measures is on a specific width wheel, at a specific pressure, including the bulge of the sidewall. You and I measure totally differently with our own wheels, our own pressures, in a straight line, typically with the weight of the vehicle on the tire. So of course we're going to see less diameter than the manufacturer listed.

Regarding putting 37s on a Jeep, my main concern would be making sure the computer is calibrated for the new diameter of the tires. That doesn't just control transmission function, it also controls ABS function, sway/traction control, speedometer reading, and a lot of other things. If all the onboard modules know the Jeep is on 37s the vehicle will be a lot happier and parts will last longer.
That's some good info. I do have a FlashPaq from SuperChips. Among a host of other settings, it does allow for tire and wheel size input. The tire size can get very specific, down to a 1/4". It also makes changes to the transmission shifting points as well. Now whether or not the transmission flash factors in tire/wheel size, I do not know.
 
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scorpionsix

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My experience with the Mickey Legend EXP was not great. They were a very loud tire on road and not especially great off road. Wet traction was mediocre to poor. My best experience with an AT or RT type tire remains the Mickey BB AT.
I has asked in a different post a month ago, tire post, if anyone had experience with the MT EXP and nobody chimed up. Glad you did. Knowing I'm not doing any highly technical trails, I was searching for a tire that will perform well on the highway. From my reading, the MT BB AT is hit or miss on highway handling. If I knew how they would work for me, they would be my first choice. I also looked at the MT Baja Legend XS but they are running 80lbs in 37x12.5x17. Glad I have plenty of time to decide.
 

jadmt

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I has asked in a different post a month ago, tire post, if anyone had experience with the MT EXP and nobody chimed up. Glad you did. Knowing I'm not doing any highly technical trails, I was searching for a tire that will perform well on the highway. From my reading, the MT BB AT is hit or miss on highway handling. If I knew how they would work for me, they would be my first choice. I also looked at the MT Baja Legend XS but they are running 80lbs in 37x12.5x17. Glad I have plenty of time to decide.
not sure I have read a negative on the bb at on the highway...I drive fast being in montana and handles twisty roads extremely well. rain, ice snow, dry...I have two sets on in 35x10 and the 37's and both have done exceptional on the highway. we do this stretch about several times a month in all kinds of weather and never an issue. also drive from Missoula to Bozeman all the time about 80mph all the way there and back. I have 23000 miles between the two sets and so far so good.

Jeep Wrangler JL 35" to 37" considerations tempImageC7aXDy


Jeep Wrangler JL 35" to 37" considerations 000_0120
 

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not sure I have read a negative on the bb at on the highway...I drive fast being in montana and handles twisty roads extremely well. rain, ice snow, dry...I have two sets on in 35x10 and the 37's and both have done exceptional on the highway. we do this stretch about several times a month in all kinds of weather and never an issue. also drive from Missoula to Bozeman all the time about 80mph all the way there and back. I have 23000 miles between the two sets and so far so good.

tempImageC7aXDy.webp


000_0120.webp
That second pic has me wanting to ride Bear Tooth Pass again.
 

jadmt

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That second pic has me wanting to ride Bear Tooth Pass again.
that is actually Highway 12 from Lolo pass to Lowell idaho...best motorcycle road nobody knows about....right out my back door really..off that road there are two incredible jeep roads that are not tough but dirt for over 100 miles each in the middle of wilderness...Lolo Motorway and magruder corridor google them and make an effort to try and do them. both are worth making a trip for.
 
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scorpionsix

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that is actually Highway 12 from Lolo pass to Lowell idaho...best motorcycle road nobody knows about....right out my back door really..off that road there are two incredible jeep roads that are not tough but dirt for over 100 miles each in the middle of wilderness...Lolo Motorway and magruder corridor google them and make an effort to try and do them. both are worth making a trip for.
I'll look those up. Living in Colorado, I have gotten to ride some great roads over and over but the one time I rode Bear Tooth Pass, it was on a whole new level. Never got to Glacier NP but it's on the list.
 

jadmt

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I'll look those up. Living in Colorado, I have gotten to ride some great roads over and over but the one time I rode Bear Tooth Pass, it was on a whole new level. Never got to Glacier NP but it's on the list.
Bear tooth pass is special for sure...I have done it many times and one that never gets old..there is some pretty cool offroading in that area as well.

Jeep Wrangler JL 35" to 37" considerations GOPR0320_zpsf6350686


Jeep Wrangler JL 35" to 37" considerations IMG_20140905_181249211_zpsuadf0v9s


Jeep Wrangler JL 35" to 37" considerations gooselake_zpsbf821c14
 

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Bear tooth pass is special for sure...I have done it many times and one that never gets old..there is some pretty cool offroading in that area as well.

GOPR0320_zpsf6350686.webp


IMG_20140905_181249211_zpsuadf0v9s.jpeg


gooselake_zpsbf821c14.webp
Since you have and use both 35's and 37's do you notice much difference off roading between the two?

I'm not sure I could definitely say one has any more "traction" then the other but I think the taller 37's just seem to crawl up and roll up and over things noticeably easier with less effort. Mine has 4.88's so in 4L it's super low which helps make slow crawling easier but I still think I notice a difference between the two sizes.

I don't really want anything wider then 12.50 on my JLUR but if someone made a 40 12.50 I sure wouldn't complain.
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