Join Date: Dec 2002
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Re: A *Different* Acle Questions
If I had a cj with a amc 20 and i thought about upgrading, i would look to another axle like a 44 or 60, you can get a 44 that is a very close match to your 20 (gears and width) and they hold up a little better with one piece axles. Or you could go 60 with a little lower gear ratio you would be ready for larger tires. I couldnt see myself spending 300 on one piece axles or 490 on a full floating rear if an upgrade could cost hundreds less. Why stick with the 20? when you could go larger. I got a scout 44 here i will sell you for $140 set up for a cj with these gear ratio's 3:08 3:54 or 3:73. If you do want to upgrade the 20 DONT BUY CHEAP ONE PIECE SHAFTS!!!! I have seen these break you know the one piece axle shafts fro under $200, read the fine print they arent hard and are for tires 31" and under. 4wd hardware sells a cheap set like this. The old "should i upgrade my 20" question is really dependent on your offroading needs, I had a show jeep with 39 mickeys and dana 30 front AMC 20 rea and i drove it on the street for 2 years with 3:54's and stock amc 20.
Heck you could even get a HD 20 from a 80's FSJ that would be a upgrade, but with thin tubes and other 20 problems i wouldnt think twice about swapping. You know the thin tube problem has haunted jeepers since 1980 but the amazing thing is that guys with ford 9"ers dont complain about bending tubes..............and they are thinner....what gives??