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Finally 3.42 ring pinion installed

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Old 01-29-2008, 10:11 PM
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Originally Posted by ronc
The rpm is where it should have been to begin with. Fuel economy is is going up. Now all i need to do is put a set of 285s and the truck will be perfect. I hope going from 3.73 to 3.42 does not make me a POSER.
THat's awesome- 3.42's and 285's for your preferred setup. You'll probably be quite please when your done and don't worry about what anyone else thinks. I would go with that setup myself- I just have a set of winters in 265 and have been overly please with them. The change to 285's and the gear swing for fron and rear would just be too much.
I see a SBC Con OFE/ FE in my future though....
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Old 01-30-2008, 07:11 AM
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Maybe I should have went with 75's vs. 70's on the 285 Toyo's. Wonder how they would look on a 2wd?

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Old 01-30-2008, 08:44 AM
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wow mikeyb with a question I thought you knew everything about everything
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Old 01-30-2008, 11:38 AM
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Originally Posted by nitis
wow mikeyb with a question I thought you knew everything about everything
Wish I knew everything! Would be downright dangerous.....

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Old 02-01-2008, 03:35 PM
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I have the 3:42 gear in my new '08 manual. runs around 1800 rmp at 65 mph.
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Old 02-01-2008, 04:22 PM
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Originally Posted by rjm022
i have 285's on my truck-dealer did the flash for the bigger tires. i have the 3.73 rear end and the 48re and i run around 1900 rpm's at 70mph
Similar to rjm022; except substitute 48RE with 68RFE and substitute 1900 with 1700.
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Old 02-01-2008, 04:29 PM
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Originally Posted by HotRodK
I have found the perfect tire. Some of you guys already run it. Its the Toyo Open Country A/T 285/75/17. Perfect width, and height. Whatcha think?

Thats what I run..

So far, they are awesome.
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Old 02-26-2008, 01:45 PM
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Truck went 698 miles, took 32 gals to fill up = 21.8 mpg.
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Old 02-26-2008, 01:52 PM
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Originally Posted by MikeyB
Maybe I should have went with 75's vs. 70's on the 285 Toyo's. Wonder how they would look on a 2wd?

MikeyB
My 01' has 285/75/16's on it, see gallery for pics.
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Old 02-26-2008, 03:09 PM
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Originally Posted by Fisherguy
Billie, how fif the 315's affect your MPG?
I put 315's on a couple of years back and did not lose any milage. Course when I switched from the BF Goodrich All Terrains (315s) to the Hankook Mudders (35s - same tire size as the 315s), my mpg dropped some.
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Old 02-26-2008, 03:37 PM
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what cheaper new gears of gear vendors?
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Old 02-26-2008, 03:48 PM
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I have 285/75/17 Toyos on my 2WD and they do well. I like them better than my previous 285/70 BFGs. The pics in my gallery have the BFGs and I have pics of the Toyos here

http://good-times.webshots.com/album/561008331IFZyGV
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Old 02-26-2008, 07:38 PM
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Well, I thought I was going with the Toyo 285/75, but the Discount Tire I always go to had a set of Nitto 295 TGs that someone ordered and backed out on. I got them out the door with lifetime balancing for $788!! Thats a great deal that I couldnt pass up!
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Old 02-26-2008, 08:38 PM
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I have the 315s (H-2s) and the 3.73, 2wd, 6 speed. I'm getting the best mileage ever (and it was good before). Before I could get 20 -21mpg highway, now I can get 24 on long trips at 70mph and even better if I take the 55mph roads. Not fun going slow but great getting better mileage!
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Old 02-26-2008, 11:21 PM
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I ran 315's this summer and my mileage back and forth to work stayed about the same 20-22 mpg's. My highway mileage suffered a little though compared with stock tires. With the stock tires 265-70-17 I was getting 24-26 mpg's with the 315's I was getting only about 23 mpg. This is all hand calculated. Just another data point for you to consider.
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