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Unread 11-05-2009, 11:35 AM   #1
Wondermutt
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1999 TJ Wrangler 
 
Join Date: Nov 2009
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30's or 31 BFG's with 4.75" bs

Gang,
I ordered new wheels for my 99 TJ 2.5L from Summit today. The Cragar Soft 8's in 15x8 with 4.75" backspacing. I was going to just put 30x9.5 BFG AT's on them but now i am wondering if 31x10.50 BFG's will fit with no issues with stock lift. I don't plan to ever go higher and this is a 80% road Jeep and NOT a daily driver.
I currently run 15x8's AR767's with 30x9.50 but the tires are bald and the wheels are old. So want a tighter look (4" vs 4.75" bs) and possibly a bigger tire. Waddya think?

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Unread 11-05-2009, 11:51 AM   #2
IslandTJ
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Location: where I wheel: N 45º 36.663' W 123º 20.935', Oregon
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Quote:
Originally Posted by Wondermutt View Post
Gang,
I ordered new wheels for my 99 TJ 2.5L from Summit today. The Cragar Soft 8's in 15x8 with 4.75" backspacing. I was going to just put 30x9.5 BFG AT's on them but now i am wondering if 31x10.50 BFG's will fit with no issues with stock lift. I don't plan to ever go higher and this is a 80% road Jeep and NOT a daily driver.
I currently run 15x8's AR767's with 30x9.50 but the tires are bald and the wheels are old. So want a tighter look (4" vs 4.75" bs) and possibly a bigger tire. Waddya think?
I'd go with the 31s , they will fit with no issue.
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1998 TJ Moss [COLOR=darkgreen][B][SIZE=3]Green[/SIZE][/B][/COLOR] Sahara w/ numerous scratches & dents whose playground is on a tropical island that's 33 miles long and 4-12 miles wide, in year-round 82 degree weather.

[Edit] "Now jeepin in Oregon" [/Edit]
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Unread 11-05-2009, 01:33 PM   #3
Bishop Creek
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I run 31X10.50 with no lift on stock wheels with 5.5" backspacing. 4.75" would push them out a little more, so you would not have any rubbing issues with 31X10.50s. Go for it.
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Unread 11-05-2009, 01:39 PM   #4
IslandTJ
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Forgot to add, I run 33x10.5 MTs on 5.25 BS Gambler wheels. I didn't rub when I first got my MTs installed. I do run spacers now, but only because it's necessary to clear my ORO SwayLOC passenger arm.
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1998 TJ Moss [COLOR=darkgreen][B][SIZE=3]Green[/SIZE][/B][/COLOR] Sahara w/ numerous scratches & dents whose playground is on a tropical island that's 33 miles long and 4-12 miles wide, in year-round 82 degree weather.

[Edit] "Now jeepin in Oregon" [/Edit]
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Unread 11-05-2009, 01:57 PM   #5
Wondermutt
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Thanks everyone. 31's it is. Can't wait. It's gonna look great on my Desert Sand TJ with black hardtop. Just repainted the fenders with flat black Krylon this summer. Wondering now if i should bother with changing the speedo gear.
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Unread 11-05-2009, 02:14 PM   #6
Rammer500
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If yours is like mine, the speedo will be more accurate now with the 31" tires. Mine read 4mph slow with 30's.
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99 TJ 4.0 5 Speed Sport, 2.5" Rough Country Lift, 1.25 Body Lift, 1" MML, SYE and CV shaft,JKS Quicker Disconnects, 33x10.50 BFG Mud Terrains,4.56 gears, Super35 w/ Ected Locker, Warn 8274 and some other stuff.
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Unread 11-05-2009, 02:23 PM   #7
Wondermutt
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You may be right! The odometer and speed are off already now that you mention it. Not sure in which direction. I will test it first. Thanks.
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Unread 11-05-2009, 03:20 PM   #8
Bishop Creek
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Originally Posted by Rammer500 View Post
If yours is like mine, the speedo will be more accurate now with the 31" tires. Mine read 4mph slow with 30's.
Ditto here.
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─ Michael Martin Murphey talking about the Eastern Sierra during an interview in 1996.
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