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Re: What gears should I use in my rear end?
N2, thankyou. I was waiting to see if someone asked these critical questions. Kerl, we need to know everything thats in front of the diff as well as tire sizes and current diff ratio. (more on this later) Without good information you can't get a good logical answer. What works for driver "A" or "B" may not be good for you or your truck. We also need the current ratio because you can't put series 3 gears on a 4 series carrier, so if you have 4:10 gears in there now 3:73 or 3:08 ect won't fit without a spacer or a 3 series carrier. If you can't decode the diff from the numbers on top of the R\S axel tube or suspect a previous diff change the most accurite way to determine ratio is to pop the cover aand look for numbers on the ring gear. The numbers you seek look like this, "00:00". They will be arranged that way. 15:41 is 2:73 ratio, where 15 represents # of teeth on the pinion & 41 the number of teeth on the ring gear. Divide 41 by 15 and you get 2:73. jim
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1984 K20 350M engine with 465,000 miles. Well, it's finally done!! Almost 2 years of work, but it was really worth the effort. Little stuff left to do is mount winch, wet sand & buff out and build belly pan\running boards. Body work takes lots and LOTS of beer!!!! God, Guts and Guns made America and God, Guts and Guns will preserve it! The worst thing you could do is get into my sights, but that don't matter, you'll never know it, cause you'll never hear the shot  Jim or Paladin whichever you choose.
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09-07-2011, 12:27 PM
Hybrid Mode
