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245/75/16 BFG ATs on a 2.7...anything wrong here...?

1K views 5 replies 5 participants last post by  Land Pirates Off Road 
#1 ·
So I searched the forum for hours and couldn't find the right answer to soothe my paranoia.

I'm running a 2010 reg cab 4x4 2.7L stock with stock gearing, and I just switched out the stock 245/75/16 Dunlops with 245/75/16 BFG ATs, and while I knew I would take a little performance hit with they heavy LT tires, it's been enough to be a shock to me, because I thought the smaller tire size would mitigate any performance issues. The BFGs are still E-Load at this size, and ride great, but I feel (and hear) the truck straining a little more to drive around. I guess here's what I'm paranoid about:

1. Will straining my truck with more unsprung mass at the wheels grenade my stock trans/gears, or driveline in general? I can definitely hear something straining in the driveline when accelerating...
2. Is regearing an option at this point with these size tires to gain back power?
3. Do I need to beef up my steering/IFS in any way with heavier front tires so don't snap something on a trail?

This is my DD, and I don't really do any rock crawling, instead I'm more of an overlander/camper and i use my truck to get to remote places to fish/camp/dirtbike once or twice a month. I often find myself driving over pretty nasty terrain which is why I wanted the BFGs in the first place, for that tough-tire peace of mind. Im just afraid I opened a can of worms...

I drive 80% highway, 20% off road. Thanks for helping this noob. :(
 
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#2 ·
same tire size (stock 31x9.50) so all you are talking about is a slight weight difference. don't worry about it.
 
#3 ·
Nothing wrong here, just a little extra weight. You really don't need to worry about it. Plenty of people out there running much bigger tires then you on the same truck with out issues.
 
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