1997 - 2003 F-150

Tire Size & Gearing Question

Thread Tools
 
Search this Thread
 
Old May 13, 2010 | 12:43 AM
  #1  
IBrakeForNobody's Avatar
Thread Starter
|
Senior Member
Joined: Oct 2007
Posts: 101
Likes: 0
From: CenCal
Tire Size & Gearing Question

After an hour of searching around and reading several threads, I'm 98% sure this will work, but I don't want any surprises later, haha. Anyway, would a 305/70/16 tire fit on a stock wheel on a 2WD F150 with a 6.5" suspension lift that's 1.5" wider per side? The wheels on the truck now are 16x7 and I think I measured them at 4 5/8" backspacing. From what I've gathered, it should fit with minimal rubbing, but I plan on removing the lower gray valance anyway, so that won't be much of an issue.

Also, can I run a 305/70/16 with 3.55 gears without blowing the transmission? I plan on regearing to 4.10 or 4.56 eventually, but I'd want to install the gears and a Detroit TruTrac at the same time, so I'll be running the 3.55s for a bit. I don't tow or anything and the only time I'm hard on the tranny is when I'm climbing up a 7% freeway grade or going off road (which right now means a dirt road). Are gears fairly easy to install or something better left to the pros?

Also, how reluctant would a tire shop be to mount a 305/70/16 on a 16x7 wheel? I think the mounting spec for a 305 is at least an 8" wide rim, so I'm not sure how hard it would be to find a place that would mount them. Thanks in advance for helping.
 
Reply
Old May 13, 2010 | 09:46 PM
  #2  
wandell's Avatar
Senior Member
Joined: Sep 2001
Posts: 28,203
Likes: 2
From: cairo,ga
Yes, they will fit/work fine. As you mentioned, I'd regear and probably add 16x8 inch wheels later on.
 
Reply




All times are GMT -4. The time now is 07:15 AM.