Dana 27 specs.
Greenwithenvy
Jeeper
The Dana 27 uses a 7 1/5" ring and pinion that is only available in 3.54:1, 3.73:1, 4.27:1, 4.88:1, and 5.38:1 ratios in the CJs. It was also available in a 4.10:1 ratio in ohter Jeeps. Many parts of the Dana 27 interchange with the Dana 25. The Dana 27 normally came with the superior Cardan-Cross u-joint type axle shafts, but carrier bearing and ring and pinion are smaller than the Dana 25.
Specs
The CJ models that used the Dana 27 include the CJ5 , CJ-5A, CJ6 , and CJ-6A. I have heard rumors that M38A1s were always built with the Dana 25, but I have not been able to confirm this.
Model/Version Spring Pads Wheel to Wheel Years
Dana 27/CJ 28" 51" '66-'71
Dana 27/M38A1 28" 51" '66-'71
Dana 27/Wagoneer NA NA '66-'73
Dana 27/Jeepster/Commando NA NA '66-'71
http://jeepTech.com
Specs
The CJ models that used the Dana 27 include the CJ5 , CJ-5A, CJ6 , and CJ-6A. I have heard rumors that M38A1s were always built with the Dana 25, but I have not been able to confirm this.
Model/Version Spring Pads Wheel to Wheel Years
Dana 27/CJ 28" 51" '66-'71
Dana 27/M38A1 28" 51" '66-'71
Dana 27/Wagoneer NA NA '66-'73
Dana 27/Jeepster/Commando NA NA '66-'71
http://jeepTech.com