CJ7Offroad
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on March 13, 2008, 06:59:00 PM
                                                           
  Dana 25,27,30                            Dana 44                                Dana 35, 35C                    AMC Model 20 
  10 Bolt Cover                                       10 Bolt Cover                      10 Bolt Cover                     8 Bolt Cover

MODEL FRONT AXLE REAR AXLE RATIOS OTHER
         
41-45 MB, GPW Dana 25 Dana 23 4.88 The rear 23 is virtually the same and interchangeable with the 25, and is a full-float variety.
45-49 CJ2A Dana 25 Dana 41 5.38  
48-53 CJ3A
50-53 M38
52-71 M33A1
Dana 25 Dana 44 5.38  
55-66 CJ-5, CJ-6 Dana 25 Dana 44 5.38 4.88 4.27  
66-69 CJ-5, CJ-6 Dana 27 Dana 44 5.38 4.88 4.27 3.73 Rear axle spline increased from 10 to 19
66-71 CJ-5, CJ-6 Dana 27 Dana 44 5.30 4.88 4.27 3.73 Rear flanged axle design with 30-spline axles
72-75 CJ-5, CJ-6 Dana 30 Dana 44 4.27 4.10 3.73 Open knuckle front end, flanged center set rear
76-83 CJ-5
76-81 CJ-6, CJ-7 
Dana 30 AMC Corporate 20 2.73 3.07 3.31  3.54 3.73 4.10 Lowest aftermarket available gear ratio for early Dana 30 is 5.38
82-86 CJ-7, CJ-8 Dana 30 AMC Corporate 20 2.73 3.07 3.31  3.54 3.73 4.10 Front and rear axles were wider than
earlier models. Last production CJ-7s
and CJ-8s had Dana 44 flanged rear
axles installed.
87-89 YJ
84-89 XJ
Dana 30 Dana 35 3.07 3.55 3.73 4.10 Front diff is on left side, some axles have
front axle disconnect, no hubs available
from factory. Lowest aftermarket available gear ratio for Dana 35 is 4.88
90-96 YJ
90-UP XJ
Dana 30 Dana 35C* 3.07 3.55 3.73 4.10 Front diff is on left side, some axles have
front axle disconnect, no hubs available
from factory. Lowest aftermarket available gear ratio for Dana 35 is 4.88
97-present TJ Dana 30
Dana 35C* 
optional Dana 44
3.07 3.55 3.73 4.10 Changed to coil spring suspension. Lowest aftermarket available gear ratio for Dana 44 is 5.13
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