Everz Posted January 7 Share Posted January 7 Recently blew up my rear diff and shop says they “can't find the right pinion gears”. I can find dana 35 3.08 pinion gears online but fitment say it is incorrect for a 1988 jeep comanche with 4x4 and 5 speed manual. Is there really a difference between a cj and mj dana 35 rear axle? here's the website where I found what I believe is the right stuff but correct me if I'm wrong. https://revolutiongear.com/revolution-gear-ring-pinion-for-dana-35-3-08-5-13-ratio/ Link to comment Share on other sites More sharing options...
Pete M Posted January 8 Share Posted January 8 when I blew up my gears I also bent the axle. I assume they checked for that? Link to comment Share on other sites More sharing options...
Everz Posted January 8 Author Share Posted January 8 12 minutes ago, Pete M said: when I blew up my gears I also bent the axle. I assume they checked for that? Maybe blown is the wrong word, differential was clicking loudly while in motion was able to drive it slowly to the nearest shop that I believed would do good work. Here I am 3 weeks later no truck and an estimate through the roof if they have to source the parts for the 3.08 ratio. Link to comment Share on other sites More sharing options...
89 MJ Posted January 8 Share Posted January 8 What about ones for an XJ axle? If you can find those, they would definitely be the same. I’d assume all D35 parts would interchange. Link to comment Share on other sites More sharing options...
Eagle_SX4 Posted January 8 Share Posted January 8 Here is the dana part number for the 3.07 gears. Dana 73442-5X. You can get them on Rock Auto. However they are way more than they should be. Most other Dana gear sets on Rock Auto are about 1/3 the price. Link to comment Share on other sites More sharing options...
Eagle_SX4 Posted January 8 Share Posted January 8 The full rebuild kit with ring/pinion and bearings is only $10 more. https://www.rockauto.com/en/moreinfo.php?pk=5699505 Link to comment Share on other sites More sharing options...
derf Posted January 8 Share Posted January 8 The CJ never came with a Dana 35 from the factory. They ran a Dana44 or AMC20 depending on the year. So CJ gears won't help you. Link to comment Share on other sites More sharing options...
Everz Posted January 8 Author Share Posted January 8 3 hours ago, Eagle_SX4 said: The full rebuild kit with ring/pinion and bearings is only $10 more. https://www.rockauto.com/en/moreinfo.php?pk=5699505 Just to make sure, the 3.07 is correct for the rear axle. I always thought the 3.07 was for the front axle with a 3.08 in the rear. I notice the spline count also says 26 when I believe its supposed to be 27. Link to comment Share on other sites More sharing options...
Everz Posted January 8 Author Share Posted January 8 45 minutes ago, derf said: The CJ never came with a Dana 35 from the factory. They ran a Dana44 or AMC20 depending on the year. So CJ gears won't help you. appreciate the help Link to comment Share on other sites More sharing options...
gogmorgo Posted January 8 Share Posted January 8 Car-part.com might find you a used 3.07 axle semi locally for cheaper than new gears. The 3.07 D35 is probably the least desirable MJ axle, I’m sure there’s someone close-ish to you with one that you’d be doing them a favour for making it go away. Link to comment Share on other sites More sharing options...
Eagle_SX4 Posted January 8 Share Posted January 8 6 hours ago, Everz said: Just to make sure, the 3.07 is correct for the rear axle. I always thought the 3.07 was for the front axle with a 3.08 in the rear. I notice the spline count also says 26 when I believe its supposed to be 27. The axle shafts are 27 spline. I have never counted the pinion splines though which is where the 26 is coming from. Link to comment Share on other sites More sharing options...
75sv1 Posted January 8 Share Posted January 8 2 hours ago, Eagle_SX4 said: The axle shafts are 27 spline. I have never counted the pinion splines though which is where the 26 is coming from. I think male vs female splines. Link to comment Share on other sites More sharing options...
Eagle_SX4 Posted January 8 Share Posted January 8 (edited) 29 minutes ago, 75sv1 said: I think male vs female splines. Pinion yoke has 26 splines axle shafts have 27. https://www.rockauto.com/en/catalog/jeep,1988,comanche,4.0l+242cid+l6,1181584,drivetrain,drive+shaft+end+yoke,16612 Edited January 8 by Eagle_SX4 Spelling error Link to comment Share on other sites More sharing options...
Everz Posted January 8 Author Share Posted January 8 1 hour ago, Eagle_SX4 said: Pinion yoke has 26 splines axle shafts have 27. https://www.rockauto.com/en/catalog/jeep,1988,comanche,4.0l+242cid+l6,1181584,drivetrain,drive+shaft+end+yoke,16612 thanks for the clarification appreciate the help. Link to comment Share on other sites More sharing options...
derf Posted January 8 Share Posted January 8 I'll confirm what has been said already. The pinion has 26 splines. The dana 30 and 44 also have 26 spline pinions. They use the same yokes. But the Dana 35 uses a different 26 spline yoke. Link to comment Share on other sites More sharing options...
Everz Posted January 9 Author Share Posted January 9 23 hours ago, derf said: I'll confirm what has been said already. The pinion has 26 splines. The dana 30 and 44 also have 26 spline pinions. They use the same yokes. But the Dana 35 uses a different 26 spline yoke. thanks for the help. I appreciate it. Link to comment Share on other sites More sharing options...
ghetdjc320 Posted January 10 Share Posted January 10 To add some info here: 3.07 and 3.08 is the same ratio when it comes to axle gearing. 3.07 is the number you’ll find most of the time. Your axle is the same as a YJ and XJ of that same year. Grab the 3.08 ring and pinion along with an install kit from revolution. Cal the to make sure they send you the correct kit. You can just ask for one for a YJ wrangler if the same year as your MJ since they will probably be more familiar with the YJ. For a Dana 35, I’ve seen whole axles for sale here and on FB cheap. Depending on your location, perhaps post a wanted ad and check your FB listings. Out of curiosity, how much are they wanting to charge for the repair? Link to comment Share on other sites More sharing options...
Everz Posted January 14 Author Share Posted January 14 On 1/10/2025 at 6:04 AM, ghetdjc320 said: To add some info here: 3.07 and 3.08 is the same ratio when it comes to axle gearing. 3.07 is the number you’ll find most of the time. Your axle is the same as a YJ and XJ of that same year. Grab the 3.08 ring and pinion along with an install kit from revolution. Cal the to make sure they send you the correct kit. You can just ask for one for a YJ wrangler if the same year as your MJ since they will probably be more familiar with the YJ. For a Dana 35, I’ve seen whole axles for sale here and on FB cheap. Depending on your location, perhaps post a wanted ad and check your FB listings. Out of curiosity, how much are they wanting to charge for the repair? Initially I believed it was a throwout bearing cause ive had a slight rattle after having a transmission rebuild, took it to AAMCO and after ripping my differential apart they quote me $2632.07 for only doing ring and pinion and bearings and seals (no spider gears). I work on motorcycles for a living so I understand shops and parts price but the fact they “couldn’t find” 3.07/8 gears for weeks when I found them online in 15 minutes and when they did find them the cost was $813.21…. after telling him to go F himself I was able to arrange bringing my own parts in for cost of labor. And trust me I tried to take it somewhere else but they want $700 for diagnostic dis/and reassembly… Link to comment Share on other sites More sharing options...
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