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Jeep Wrangler JK
JK General Discussion
Questions about running 37s on a Dana 30 front axle
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<blockquote data-quote="Mean Green" data-source="post: 420272" data-attributes="member: 17054"><p>Hello everybody. Recently I traded in my Ram 1500 truck for what I have always considered my dream vehicle. 2016 Jeep Wrangler Unlimited Sport S. This isn't just another sport s, this thing has some modifications done to it as well as factory installed extras including heated leather sears, upgraded premium sound system. This Jeep had just over 15000 miles when I bought it and was previously owned by a doctor that I work with. Currently its sitting on a 4.5 inch bds lift, 37x12.5r17 mt/r's on beadlock rims, poison syder front and rear bumper, aev snorkel, aev procal, and winch. The down side (or so people say) is that it is on the factory dana 30 and dana 44 with the factory 3.21 gears. The gearing will be fixed soon as i have ordered 4.88 gears to make this thing run properly. Given that it is on this set up, I'm amazed at how well it does run. I know people say they cant tolerate even 4.56 gears with 37's so i can't wait to have the 4.88's. The interesting thing I have found on forums and throughout the internet is that you shouldn't run 37's with the dana 30. Everyone is always saying that as you wheel and bind up that front axle, it'll snap every time. But with the gears I'm going to add axle sleeves and gussets and eventually upgrade the axle shafts. My goal is not to have a rock crawler but an everyday driver with the ability to take me out and run back roads and two tracks all day long. I'll also be getting rid of these mt/r's for some all terrain tires which will drop the weight to 68 lbs per tire vs the 80 lbs the mud terrains are. Am i completely out of my mind thinking that I can't make this work for a long time? Just for reference, I have a 1978 jeep cj7 with the factory two piece axle shafts in the amc 20 in the back. I've been running 33x12.5r15's for many years off road and still haven't had a break. I'm guessing the dana 30 can be made to last just like I have made the amc 20 last.</p></blockquote><p></p>
[QUOTE="Mean Green, post: 420272, member: 17054"] Hello everybody. Recently I traded in my Ram 1500 truck for what I have always considered my dream vehicle. 2016 Jeep Wrangler Unlimited Sport S. This isn't just another sport s, this thing has some modifications done to it as well as factory installed extras including heated leather sears, upgraded premium sound system. This Jeep had just over 15000 miles when I bought it and was previously owned by a doctor that I work with. Currently its sitting on a 4.5 inch bds lift, 37x12.5r17 mt/r's on beadlock rims, poison syder front and rear bumper, aev snorkel, aev procal, and winch. The down side (or so people say) is that it is on the factory dana 30 and dana 44 with the factory 3.21 gears. The gearing will be fixed soon as i have ordered 4.88 gears to make this thing run properly. Given that it is on this set up, I'm amazed at how well it does run. I know people say they cant tolerate even 4.56 gears with 37's so i can't wait to have the 4.88's. The interesting thing I have found on forums and throughout the internet is that you shouldn't run 37's with the dana 30. Everyone is always saying that as you wheel and bind up that front axle, it'll snap every time. But with the gears I'm going to add axle sleeves and gussets and eventually upgrade the axle shafts. My goal is not to have a rock crawler but an everyday driver with the ability to take me out and run back roads and two tracks all day long. I'll also be getting rid of these mt/r's for some all terrain tires which will drop the weight to 68 lbs per tire vs the 80 lbs the mud terrains are. Am i completely out of my mind thinking that I can't make this work for a long time? Just for reference, I have a 1978 jeep cj7 with the factory two piece axle shafts in the amc 20 in the back. I've been running 33x12.5r15's for many years off road and still haven't had a break. I'm guessing the dana 30 can be made to last just like I have made the amc 20 last. [/QUOTE]
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Jeep Wrangler JK
JK General Discussion
Questions about running 37s on a Dana 30 front axle
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