Ford Ranger Forum - Forums for Ford Ranger enthusiasts!

Go Back   Ford Ranger Forum - Forums for Ford Ranger enthusiasts! > >
Forgot Password? Join Us!

Welcome to Ford Ranger Forum

Reply
 
Thread Tools Search this Thread

  #1  
Old 01-09-2010, 01:01 AM
wjblack wjblack is offline
Learning to use the forums
 
Join Date: Dec 2009
Posts: 12
Question Bigger Tires/Rims = New Spare Needed?

Hi all!

I recently upgraded from 15x8 rims with 225/70/15s to 16x8 rims with 235/70/16s. According to the handy-dandy tire size calculator, that means that my new tire/wheel combo is 1.6 inches bigger in diameter than the old one (29 in vs 27.4 in).

Does this mean I can't use the old spare? I imagine not, but I'd love to avoid having to purchase (or beg, borrow, steal, or trade for) a bigger spare.

Or am I OK if I treat it like a donut (<50MPH, no more than 30 miles)?
__________________
2001 Ranger XL 2.5L 2WD
With flames (to make it go faster)
Reply With Quote
  #2  
Old 01-10-2010, 01:07 PM
Harleymedic53 Harleymedic53 is offline
03 Ranger xlt, 4.0L, 4x4
 
Join Date: Dec 2009
Posts: 416
Default

im sure u'll be ok.. a spare is for an emergency, to get you out of the emergency. i wouldn't think 1.6" is gonna make the world of difference until you can get the tire repaired. Now ya i wouldn't run 35's w/ a donut lol
__________________
The {EVOLUTION} Continues
!:::My Ride:::!
[SIZE="1"]2003 FX4 Ext cab 4x4.
4.0L V6, 4.10 axel 8.8 l/s, CAI, 2.25" Exhaust w/ turbo muffler.
T-bar crank, 33x12.5 Firestone Destination A/T on 15x8 Soft 8's.
3" BL, 6400 Shackels
Red LED's:Under dash and behind Grill, 6" fogs behind grill, painted headlights and flairs
Truxxedo Lo-pro Tonneu Cover and Chrome bed rails
Mods to come:DIY bedliner.
Reply With Quote
  #3  
Old 01-10-2010, 01:27 PM
Gearhead299 Gearhead299 is offline
<<<IT LIVES!!!!
 
Join Date: Oct 2009
Posts: 300
Default

i'm gonna guess you've got an open differential, so you'll be fine using it in an emergency, if you had a spool/locker/limited slip you could do damage if you left two different size tires on the drive axle for very long
Reply With Quote
  #4  
Old 01-10-2010, 02:33 PM
Jay FX4 Jay FX4 is offline
▲▼▲▼▲▼▲▼
 
Join Date: Jun 2009
Posts: 2,511
Default

Quote:
Originally Posted by Gearhead299 View Post
i'm gonna guess you've got an open differential, so you'll be fine using it in an emergency, if you had a spool/locker/limited slip you could do damage if you left two different size tires on the drive axle for very long
+1.

Technically, the best way to use the spare (if the flat is on the rear) is to move one of the front tires to where the flat tire is and put the spare on the front. I can't see anybody goingn to that much trouble, though. Especially in winter. But unless you do that, you better get where you're going pretty quick. Otherwise you might have a very pissed off diff.
__________________
Quote:
Originally Posted by Ranger Dave (B25) View Post
Our foreign policy is laughable at best. As is the recipient of this years Cracker-Jacks prize for 'peace.'
Quote:
Originally Posted by Toms984x4 View Post
NOS for teh horse powaz!!!
ɹǝʌo ǝɯ dılɟ
Reply With Quote
  #5  
Old 01-12-2010, 01:58 PM
Americantruckfleet Americantruckfleet is offline
v8 wannabe
 
Join Date: Dec 2009
Posts: 157
Default

great advice!

definatly will keep it in mind when one of new BFG's go bad.... i hope i didnt jinx myself... o well.
__________________
__-00-__Totally Resurected from the Dead__-00-__
1994 Ford XLT Extended Cab.
Automatic Transmission w/ a 4.0 6-Cylinder.
2" body Lift on Front & 3" Body Lift on Rear.
American Racing Lock-Out Hubs w/ an electronic 4 wheel drive selector switch.
32 x 11.50 x 15 BFG A.T. K.O.'s for my tires with American Racing Aluminum Rims.
New Engine, New Paint (Frame too), New Interior.... New Everything.
Reply With Quote
  #6  
Old 01-12-2010, 02:11 PM
surfer03133 surfer03133 is offline
Dead Whales Everywhere!
 
Join Date: May 2009
Posts: 929
Send a message via Skype™ to surfer03133
Default

i bought a retread since they're cheap and it will actually be able to get my out of somewhere i am. i know i'm gonna get a flat tire when i'm 20 miles from the nearest road lol
__________________
08 Ranger Sport 2wd
aFe CAI, 30x9.5.x15 Grabber AT2s, U/D pulleys, flowmaster super 44

"Those who make peaceful revolution impossible will make violent revolution inevitable."
- John F. Kennedy

"Somehow the "god of the athiests" delivers more miracles than all other religion combined than..."
Reply With Quote
  #7  
Old 01-12-2010, 05:42 PM
Gearhead299 Gearhead299 is offline
<<<IT LIVES!!!!
 
Join Date: Oct 2009
Posts: 300
Default

Quote:
Originally Posted by Jay FX4 View Post
+1.

Technically, the best way to use the spare (if the flat is on the rear) is to move one of the front tires to where the flat tire is and put the spare on the front. I can't see anybody goingn to that much trouble, though. Especially in winter. But unless you do that, you better get where you're going pretty quick. Otherwise you might have a very pissed off diff.
agreed but like you said most people won't go through that trouble, especially in inclement weather

i drove around for quite a while with a small spare, then someone sold me a matching wheel for $20 with a tire that was closer to my size, then on the way to senior prom i saw a 31x10.5 on the side of the road and i grabbed it, its dry rotted but it holds air and its a no name all terrain so it'll work in a pinch
Reply With Quote
Reply

Tags
spare upgrade donut

Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
How do you recalibrate the speedo/odo for bigger tires? NOLArat Wheels and Tires 22 12-03-2013 09:12 AM
Bigger tires brannonmetal Wheels and Tires 3 11-05-2009 03:06 PM
Bigger Tires? lessiseric27 Wheels and Tires 17 07-24-2009 07:36 PM
Bigger tires on Ford ranger? That one guy. Wheels and Tires 1 11-30-2008 01:44 AM
Will my tires off a 93 lumina fit my 97 ranger incase i need a spare? softballbabe06l Wheels and Tires 2 11-29-2008 09:58 PM