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Gus
Dodge Dakota
JOIN HERE
4/24/2002
16:23:02
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 Subject: I think I f'ed up with my tire purchace
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Message:
Fellow Dak'ers...
Need your reassurance on this one.
I recently installed 255/55 17 on my new R/T rims for my 4X4 Quad. I checked tire rack and this was the recommended tire size for my application. I think it was really intended for the 4X2. My OEM was 31X10.5 15. I have no idea what my actual speed is and I hope I'm not screwing up my engine and drive train. Am I losing acceleration too?
Truck handles a lot better though, cornerning, smooth ride, and I don't notice any lag just that my RPM's have shot up for the speed I'm actually driving. How about milage?
What do you guys think?
Thanks in advance.
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alex
Dodge Dakota
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4/24/2002
16:37:06
| RE: I think I f'ed up with my tire purchace
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Message:
You replaced your 31" tall tire with a 28" tall tire and this has raised your NUMERICAL gear ratio from your stock ratio to something really deep. Like if you had 3.55 gears, you now have soemthing equivalent to a 4.10 gear (maybe even more). Great for acceleration, kinda sucky for gas mileage. Hmmmmm.....
OOps.
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big_torque
Dodge Dakota
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4/24/2002
16:43:47
| RE: I think I f'ed up with my tire purchace
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Message:
I read somewhere that for every inch change in tire diameter , is = to about .10 in axel ratio.
31" tire - 3.55
30" - 3.65
29" - 3.75
28" - 3.85
and so on.
One thing that sucks is yer speedo will be reading faster and you`ll be putting on more miles than you are actually traveling.
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Gus
Dodge Dakota
JOIN HERE
4/24/2002
16:56:23
| RE: I think I f'ed up with my tire purchace
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Message:
Thanks guys....
I'm not concerned about the milage. Damage in the long term? to the drivetrain and engine is what's bothering me. I bought the new wheels/tires for the summer.
Your right about acceleration she's a little faster.
... but what's the verdict did I make a good buy?!?
Thanks again!
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alex
Dodge Dakota
JOIN HERE
4/24/2002
17:09:20
| RE: I think I f'ed up with my tire purchace
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No more damage than if you had ordered the truck with a deeper gear ratio. If you like the look and don't mind the gas mileage, then you're the man.
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big_torque
Dodge Dakota
JOIN HERE
4/24/2002
17:12:01
| RE: I think I f'ed up with my tire purchace
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I would say that you are doing no damage whatsoever. The rear tires are just spinning a little faster and you`ll have a little more low end torqueyness. Torqueyness , is that a word ?
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bjlindsey
*GenIII*
4/24/2002
20:02:34
| RE: I think I f'ed up with my tire purchace
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Message:
You should know!!!! LOL :)
01 QC 4x4 5.9L 3.92 LSD
3" Body Lift, 305/75-R16 XTerrains,
K&N clone, Clear Corners, Carbon Fiber Tails,
www.FreeGasForYou.com
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kota on 20s
GenIII
4/24/2002
20:07:36
| RE: I think I f'ed up with my tire purchace
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Message:
LMAO at your statment and pic hahaha
Eric, 98 5.2 5speed, K&N gen II, 50mm TB, 2bbl M-1, 1.7RR's, JBA ciramic headers, carsound cat, dumped gibson, and a lot more
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