The 1300 dollar fixer upper surprise project

[shanebo]

Right on man!! I'm glad that you found the problem. Vibrations are always scary to me....some vibrations are harmless while others are a a sign of serious problems....and they're so hard to diagnose sometimes. Worn bushings seem to be the culprit alot of the time.

Take care
shane

[tougeagle]

Right on man!! I'm glad that you found the problem. Vibrations are always scary to me....some vibrations are harmless while others are a a sign of serious problems....and they're so hard to diagnose sometimes. Worn bushings seem to be the culprit alot of the time.

Take care
shane

yeah, I know what you mean, it was really getting me worried... Now I know what a solid mount would feel like >_< I still have a moderate reciprocating vibration that was unchanged, at highway speeds. I'm starting to think it's the front diff, cus when I check it after a long drive, it's HOT to the touch. Luckily I have another one sitting behind the shop, I'm going to swap that in and see if it fixes anything tomorrow, after dealing with my driveshaft. I'm hoping the driveshaft fix will do it, even with the use of a lift and being under my car, it's still a royal pita  to swao that diff out.

[shanebo]

Now that you mention the diff...Im gonna check mine out very thoroughly while the engines out. The only lift I got access to is a floor jack and a couple of jack stands that job would be a nightmare!!

Im really curious as to what is causing that vibration!! Is caroline eating up tires any worse since this vibration started?

I sure hope you get that vibration resoled...Those things sure get the blood preassure up!!

[tougeagle]

Now that you mention the diff...Im gonna check mine out very thoroughly while the engines out. The only lift I got access to is a floor jack and a couple of jack stands that job would be a nightmare!!

Im really curious as to what is causing that vibration!! Is caroline eating up tires any worse since this vibration started?

I sure hope you get that vibration resoled...Those things sure get the blood preassure up!!

I think the vibration is from the double slip joint in my rear driveshaft, which causes a wobble at certain frequencies. I haven't decided what to do about it yet, though I'm thinking of using a rubber pipe coupling and a few well placed hose clamps on the eagle part of the drive shaft and leave the slipyoke to do as it should, grand cherokee style. that should eliminate it. I've decided I also am getting rid of the poly trans bushings altogether and putting rubber under there, as there is still more vibration from the engine than I'd like, though it's not because of the engine.

I can't quite tell, she wears them perfectly evenly all around, and I mean perfectly. I've put 18k miles on her and rotated the tires once, and they all have almost exactly the same tread depth, except for the snow tire which is newer. And, she still needs an alignment and front end rebuild, bad.

If the recip vibration is still there, I'll know it's the front diff and I'll set aside a few hours at the shop to swap it out.

[shaggimo]

  I didn't realize you were running a double slip, that could very well be your issue. If the driveshaft were to walk back and forth while driving constantly changing your geometry that would cause quite the vibe......What case are you running? If a 231, you can just do a slip yoke eliminator set up. Cheap way, drill a hole through your yoke and out put shaft, tap it and run a bolt through. Though u-joint changes would be made kinda difficult with that route, it works.

[tougeagle]

I didn't realize you were running a double slip, that could very well be your issue. If the driveshaft were to walk back and forth while driving constantly changing your geometry that would cause quite the vibe......What case are you running? If a 231, you can just do a slip yoke eliminator set up. Cheap way, drill a hole through your yoke and out put shaft, tap it and run a bolt through. Though u-joint changes would be made kinda difficult with that route, it works.

I have a 249. The bolt idea was my original idea but pulling the driveshaft out would be a pain, I would need a very low profile wrench. I think I'm going to have my boss weld the drive shaft at the stock slip in a fixed location, and let the slipyoke do the work. That way, my driveshaft will still be easily removed if needed, and it will eliminate the slight bit of rotational play between the end of the eagle shaft and the main shaft section.

[shaggimo]

Welding the shaft slip will do to, you may want to look into having a new shaft made at some point down the road, it doesn't cost too much usually, maybe 90-150? I've made my own driveshaft at one point (shortened the tube, welded yoke back on), but I consider that one **luck**  .

[tougeagle]

Welding the shaft slip will do to, you may want to look into having a new shaft made at some point down the road, it doesn't cost too much usually, maybe 90-150? I've made my own driveshaft at one point (shortened the tube, welded yoke back on), but I consider that one **luck**  .

I have decded I am going to get a comanche drive shaft, have the slip joint eliminated and the shaft shortened to the right length, then attach the slipyoke to it, and rock it Grand cherokee style.

[shanebo]

Does caroline have a stock rear end or is she running an XJ rear?

[tougeagle]

Stock rear end. I like my 2.73s and you'll never find those under an XJ, or any 5 bolt jeep after the CJs if I remember correctly. I will probably go to 2.35s after the turbo.

[doneagle]

            HI   Toug would you do some thing for me.  Tell me why you don't like me.....Don

[doneagle]

           HI    Did I hear right that you lost your job .. If yes Aim sorry to hear that .I wish there was some way
                   to help you . I gave up my job 1-1-07 and I miss it but I cant go back......I hope you find some thing
                   soon.....GOOD LUCK ......................Don

[doneagle]

            HI Toug      good luck with Blue Bird.....Don

[tougeagle]

            HI   Toug would you do some thing for me.  Tell me why you don't like me.....Don

I'm not sure why you would think I dislike you, I don't dislike anyone on this forum... I found a job working as a construction laborer... this temp agency I'm going through is paying pretty decent (for single/no kids income) but has me working my butt off, in addition to my mowing and landscaping business over teh weekends. I work 7 days a week basically, though this may be the last week on this site, at which point I'll take a week off, with a family vacation coming up next week...

I'm very much looking forward to bluebird, though my budget got a lot tighter as of last friday thanks to a hefty ticket (167 bucks for speeding X_x) and am not looking forward to spending too much cash on her. Fromwhat it looks like though, she should be good to go with a decent tuneup and some basic gaskets.

[doneagle]

    HI Toug  glad to hear your working ..to Meany days a week but you have to do what you have to do to get along
         Sorry to hear about the speeding ticket that is bad...Enjoy your week off ....From what SHane said it won't
         take alot to get Blue Bird going....     Don