new tires....quick stupid question

JBOD77

Well-known member
Feb 1, 2008
321
0
46
Oyster Bay, Long Island, New York
So, I got the new tires on after the lift. BFG TA/KO 265/75/16. Question is........ what tire pressure?? Manufacturers recommended pressure (whats on the sidewall) but I know that's for max load......stock pressure??? but its for a different size???? Since its the same size as my defenders tires should I run at 33 like in the 90??? but its a different car????

So where is the middle ground???
 

Jupiter Rover

Well-known member
Dec 18, 2006
1,690
0
South Florida
Do the chalk test.

You rub chalk on the tires and drive a short distance. If only the inside is missing chalk, deflate. If only the outside, inflate.
 

fosterchild420

Well-known member
Feb 18, 2008
301
0
Prospect, VA, USA
i know it says to run the different pressure in front and back but why? seems like with full time 4x4 you would want them all identical therefore the same diameter.
 

Neil C

Well-known member
Jan 3, 2009
161
0
54
Texas Coast
2009 054a1.JPG

2009 053a1.JPG

Did you get the spare in the same size as well? Stock or aftermarket rear bumper? If stock did you buy the adapter or flip the bracket?

I bought Hankook 10 plies after an OME 2 inch lift in 265/75/16 and bought the adapter. Now I'm wrestling with a defender spare cover.

I'm running 35 psi front and rear, but freely admit I know a lot less than the guys suggesting different pressures front to rear.

I do like the look it gives the Disco now that it's got a bit longer legs and the ride and handling are just fine for my non calibrated backside.

Neil
 

JBOD77

Well-known member
Feb 1, 2008
321
0
46
Oyster Bay, Long Island, New York
Neil C said:
View attachment 44288

View attachment 44289

Did you get the spare in the same size as well? Stock or aftermarket rear bumper? If stock did you buy the adapter or flip the bracket?

I bought Hankook 10 plies after an OME 2 inch lift in 265/75/16 and bought the adapter. Now I'm wrestling with a defender spare cover.

I'm running 35 psi front and rear, but freely admit I know a lot less than the guys suggesting different pressures front to rear.

I do like the look it gives the Disco now that it's got a bit longer legs and the ride and handling are just fine for my non calibrated backside.

Neil
Spare is the same size as well. From what i learned from one of my other posts sometimes they fit sometimes they don't. I did order an adapter plate from RTE as I had a gift certificate. I didn't want to mess with the rear wiper when I flipped the bracket. I also didn't want to remove the back panel until I get a replacement rear ladder. I was gonna try the spare without it first and I'll go from there.

I think I'm gonna try 45 rear 35 front and go from there until it warms up enough for me to feel like doing the chalk test. Maybe I'll just run 40 all around. Guess I'll have to mess with it until the chalk test shows the real deal.
 
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99Disco1

Well-known member
Mar 28, 2006
111
0
You will always get different answers when it comes to tire psi. but I gotta ask..... why would you run more in the rear?? I have always run more in the front since thats where the weight is and it is responsible for most of the stopping and all of the steering.

I ran that exact tire for a couple years on mine and they wore great at 35 front and back. I rotated them with every other oil change.
 

JBOD77

Well-known member
Feb 1, 2008
321
0
46
Oyster Bay, Long Island, New York
99Disco1 said:
I gotta ask..... why would you run more in the rear?? I have always run more in the front since thats where the weight is and it is responsible for most of the stopping and all of the steering.

The sticker on the door jamb recommends the same thing. Aproximately 10 pounds higher in the rear....I don't know why
 

flyfisher11

Well-known member
May 25, 2005
8,676
2
61
Wolf Laurel NC
99Disco1 said:
You will always get different answers when it comes to tire psi. but I gotta ask..... why would you run more in the rear?? I have always run more in the front since thats where the weight is and it is responsible for most of the stopping and all of the steering.

I ran that exact tire for a couple years on mine and they wore great at 35 front and back. I rotated them with every other oil change.

WRONG! The rears of these things are much heavier especially on a DII. Do yourself a favor and look at the tire bulge with equal pressure. You will easilly see the rear bulging more than the front at the same pressure. Why do you think the stock pressure differential is so much more in the rear than the front? It's the same principle no matter modded or non modded. But what do I know:p

Cheers,

Mike

edit: Just look at your coil spring size and rates. How come a person can do a poor bastard lift merely by installing rear springs on front and gain 2~3" of lift?
 
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Ed Cheung

Well-known member
Aug 23, 2006
1,584
2
Hong Kong
The rear door with spare tires is pretty heavy, plus the fuel in the gas tank. And the actual body side way back after the front shock mount ( from the firewall to the rear end).