Quote:
Originally Posted by Captainfab
I believe that 4.10 was the lowest gear available from the factory. The 12 bolt was in use thru '82 in the C10 and K10 trucks. They are more common thru '79. However if you are willing to go with aftermarket gears, Richmond has them all the way to 5.38's and Yukon goes down to 4.88's. Those will fit the 4 series carrier you currently have.
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Ok, more questions on this dated thread. So if i go with Richmond Gears I can use a 4.56 gear. Next question, has anyone here changed their own gears? Is this something that can be done at home or does it require specialized tools and/or big capacity impact wrenches?
Also, if I currently have 3.73 gears that means I have a 4 series carrier, right?
My information states that for stock trucks using the GM 8.875" 12 Bolt Differential:
3-Series: (3.42 and numerically lower)
4-Series: (3.73 and numerically higher)
Thanks...