I own an 89 sub with 33s and 3.08s. I was considering swapping out the gears to 4.11s. The Sub is got to see serious trail use. Its main purpose is for transportation and once the 4.11s are installed it will be used occasionally as a tow rig. I will be towing probably 6,500 to 7,000 pounds max. Most of the time it will be 5,000 pounds or less, most of the time less. Also keep in mind that I will not be towing with it daily or even weekly just on occasion. Now for my question. Should I swap the gears in the 10 bolts or opt for 12 or 14 bolts that already have 4.11s. The main problem I have with this is that you never really now what you are getting when you buy used from somebody else. I am looking for an inexpensive solution. I purchased a 12 bolt with 3.73s used and insatlled it in my 89 jimmy and It turned out to be junk. If I install 4.11s in my 10 bolts I know what I have. It needs to be reliable as it may be driven fairly long distances. Also if I go with 14 bolts, what other modifications and changes need to be made besides the wheels. The Sub runs, rides, and handles like a dream. I hate to change anyting with it. Why mess with a good thing. But the gears are way to high. I know this is a lot of info but Thank you in advance for any input you may have.