Herada12 Posted January 24, 2015 Share Posted January 24, 2015 So tonight as I sat in the garage pondering how in the hell I'm gonna make my driveshaft work after my SOA swap, a thought came to mind. So the newer np231's are able to be eliminated via the hack and tap method. By the way, I'm SUPER cheap so I'm always looking for the cheapest way to get by..... So I slide my slip yoke on the transfer case and say to myself. Why couldn't I just drill and tap the yoke right to the end of my shaft? If the yoke won't bottom out on the shaft I could always add shins inside to make it bottom out. Maybe just some washers or a piece of tubing? Anybody ever heard or thought of this? I'm guessing theres some reason that it won't work? I just hate to spend the money and time to swap to the newer case. Just my cheap side coming out!!! Link to comment Share on other sites More sharing options...
88whitemanche Posted January 24, 2015 Share Posted January 24, 2015 IIRC You don't need a sye for an SOA...unless your at 7+ Inches of lift Link to comment Share on other sites More sharing options...
Jeep Driver Posted January 24, 2015 Share Posted January 24, 2015 I took the wife and boy with me to do a job in SC, 150 miles south. Worked around the clock for three days and came home late Tues night. I can not afford to lose a DS tooling down the interstate at 70mph with my family. I don't hack and tap jack-$#!&. Cheap gets expensive. Link to comment Share on other sites More sharing options...
Herada12 Posted January 24, 2015 Author Share Posted January 24, 2015 Well, for starters, my manche won't ever see the road. Or high speeds. I'm only going offroading! And after getting my axle bolted on and checking out drive shaft lines. Theres no way the stock alip yoke will work. Even at ride height it is going to bind. Let alone when its fully flexed. I definetly need to come up with a SYE and a new driveshaft . Link to comment Share on other sites More sharing options...
Herada12 Posted January 24, 2015 Author Share Posted January 24, 2015 Oh and btw. I did SOA and it already has a set of shackles in the back. Guessing 2 or 2.5 inches of lift? Plus the SOA. So I'm probably right atound 7 inches Link to comment Share on other sites More sharing options...
Jeep Driver Posted January 24, 2015 Share Posted January 24, 2015 http://www.billavista.com/Tech/Articles/Driveshaft_Bible/index.html This is not the place to go cheap or cobble up $#!&.....that was the point. Link to comment Share on other sites More sharing options...
HOrnbrod Posted January 24, 2015 Share Posted January 24, 2015 Have you measured your driveshaft angles yet? The stock 1310 u-joint can handle up to a 12* operating angle. And there are plenty of slip yokes that can handle that angle, like the YJ slip yoke. And it's a bit longer than the stock MJ yoke. So, what is your driveshaft angle? Link to comment Share on other sites More sharing options...
mnkyboy Posted January 24, 2015 Share Posted January 24, 2015 I ran the stock shaft soa with lift shackles for years, never had an issue. Link to comment Share on other sites More sharing options...
86FUBAR Posted January 24, 2015 Share Posted January 24, 2015 I'm at about 8-9" of lift with a 1" drop in the crosmember and the original driveshaft though the swaped in 44 added the much needed 1" of length so I didn't have to get a longer slip yoke. Link to comment Share on other sites More sharing options...
Jeepman Posted January 24, 2015 Share Posted January 24, 2015 Ya I am running over 8" of Lift and No SYE needed either and I too am running a D44 Link to comment Share on other sites More sharing options...
mvusse Posted January 26, 2015 Share Posted January 26, 2015 Also, if you do eliminate the slip yoke, you need to have a slip joint in the driveshaft somewhere. I used to run ~9" lift in the back, one inch longer snout on the 8.25" I swapped in after I threw the D35 away, 1/2" longer slip yoke off a YJ Wrangler, and never had a problem with the stock driveshaft until I bent it on a rock; did the same thing to the next two stock driveshafts. I then had a custom one made out of 3" diamter .188 wall DOM, one inch longer than stock to be a perfect fit. I run a HD SYE and one tons with a completely custom driveshaft now. Link to comment Share on other sites More sharing options...
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