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Car Forum / Jeep / February 2007U joints.
How can I tell when I need to replace my rear u joint on my 95 YJ? Any visible signs? I am noticing some unexplained vibration. Thanks, Greg Greg, Unexplained vibes is a big indicator. Block the wheels and climb under there. Rotate the shaft back and fourth and look for slop in the joints. It's $10 for two new joints and takes around 10-15 minutes to change for an experianced person, 45 for a first-timer. They probably need it. Carl > How can I tell when I need to replace my rear u joint on my 95 YJ? Any > visible signs? I am noticing some unexplained vibration. > > Thanks, > > Greg > Greg, > [quoted text clipped - 13 lines] > > - Show quoted text - Hi Carl. Thanks for the advice. Makes sense. My other question is then, I just bought an 86 XJ and with it the guy threw in 4 brand new u joints!! Are they universal to Jeeps, say YJ to XJ ? Greg I do not know if they cross between the 84-86 XJ's and later models, but AFAIK the rear u-joints, front u-joints and front axle u-joints are all the same part number for 87-01 XJ's, all YJ's and TJ's. (D35 axle). Carl >> Greg, >> [quoted text clipped - 20 lines] > > Greg > I do not know if they cross between the 84-86 XJ's and later models, but > AFAIK the rear u-joints, front u-joints and front axle u-joints are all the [quoted text clipped - 32 lines] > > - Show quoted text - Well I just went out and climed under it. No noticeable play but that doesn't mean that there isn't any right? Greg How about the rust? I would go ahead and replace 'em anyway if you don't know when they were last replaced. Carl >> I do not know if they cross between the 84-86 XJ's and later models, but >> AFAIK the rear u-joints, front u-joints and front axle u-joints are all [quoted text clipped - 41 lines] > > Greg > How about the rust? I would go ahead and replace 'em anyway if you don't > know when they were last replaced. [quoted text clipped - 52 lines] > > - Show quoted text - No rust seeping that I saw, it appeared very dry. I am getting some vibration thru the steering wheel and shifter. When I depress the clutch or let off the gas, it stops. It seems to be getting worse. I thought maybe the u joints, but maybe a slipping clutch? I don't know, guess I'll have to take it to my mechanic. I really hate doing that! It has a 5 speed and about 80k miles on it. Greg > > How about the rust? I would go ahead and replace 'em anyway if you don't > > know when they were last replaced. [quoted text clipped - 67 lines] > > - Show quoted text - Should my Jeep be in gear when I perform this test? Greg Yes, the jeep should be in gear. Check out your front end and tire balance if you are getting a steering wheel vibe. Carl >> > How about the rust? I would go ahead and replace 'em anyway if you >> > don't [quoted text clipped - 78 lines] > > Greg > Yes, the jeep should be in gear. Check out your front end and tire balance > if you are getting a steering wheel vibe. [quoted text clipped - 85 lines] > > - Show quoted text - Why when I let off the gas or depress the clutch does it stop. That wouldn't be unbalanced tires or front end probs wpuld it? Greg > > Yes, the jeep should be in gear. Check out your front end and tire balance > > if you are getting a steering wheel vibe. [quoted text clipped - 96 lines] > > - Show quoted text - Also feel it in the shifter as well. Greg The best way to tell is to take off the drive shaft (not that hard) and feel for roughness or slop in the joints. They can feel nice and tight when you crawl under the vehicle, but if they are starting to seize up they will get loose pretty quick. One good thing is that the drive shaft is (theoretically) too short to pole vault your vehicle that far when the front joint breaks, and Myth Busters debunked that one anyway. The vibration stopping "when I let off the gas or depress the clutch" is a pretty good sign of a bad U-joint. Earle > > > Yes, the jeep should be in gear. Check out your front end and tire balance > > > if you are getting a steering wheel vibe. [quoted text clipped - 100 lines] > > Greg > The best way to tell is to take off the drive shaft (not that hard) and feel > for roughness or slop in the joints. They can feel nice and tight when you [quoted text clipped - 134 lines] > > - Show quoted text - Yes I am afraid thats what it is. It is terribly obvious. If you could only see what I see!! Greg > Yes, the jeep should be in gear. Check out your front end and tire balance > if you are getting a steering wheel vibe. [quoted text clipped - 85 lines] > > - Show quoted text - Hey Carl, just went out again and checked for side play. Clicking sound and about 1/16 play. I think its toast. Thanks for the help! Greg 1/16" in the U-joint itself or in the whole shaft? Some play is normal in the whole shaft for the pinion gear and ring gear to mesh, as well as the shaft in the t-case. Any play in the U-joints is unacceptable. Carl >> Yes, the jeep should be in gear. Check out your front end and tire >> balance [quoted text clipped - 102 lines] > > Greg > 1/16" in the U-joint itself or in the whole shaft? Some play is normal in > the whole shaft for the pinion gear and ring gear to mesh, as well as the [quoted text clipped - 114 lines] > > - Show quoted text - Its in the joint Due for a replacement. Be sure you get the greaseable kind, and not the needle fitting. Carl >> 1/16" in the U-joint itself or in the whole shaft? Some play is normal in >> the whole shaft for the pinion gear and ring gear to mesh, as well as the [quoted text clipped - 130 lines] > > Its in the joint > > 1/16" in the U-joint itself or in the whole shaft? Some play is normal in > > the whole shaft for the pinion gear and ring gear to mesh, as well as the [quoted text clipped - 122 lines] > > - Show quoted text - Lateral slop When I went to Canadian Tire for my first U joint, computer said, " fits jeep, 1946 to 2001" they were looking under 81 CJ7 so don't know if that goes for the bigger jeeps or not, thought it was funny though. But I do know 81 CJ, 88 and 95 all use the same driveshaft U joints. >I do not know if they cross between the 84-86 XJ's and later models, but >AFAIK the rear u-joints, front u-joints and front axle u-joints are all the [quoted text clipped - 26 lines] >> >> Greg Jeeps once were a wonderful product, darned shame what they have done to latest editions. Now they want to be like everyone else and throw away what made a Jeep a Jeep! > When I went to Canadian Tire for my first U joint, computer said, " fits > jeep, 1946 to 2001" they were looking under 81 CJ7 so don't know if that [quoted text clipped - 23 lines] > >>> > How can I tell when I need to replace my rear u joint on my 95 YJ? Any > >>> > visible signs? I am noticing some unexplained vibration. Hi Greg I am apprehensive about parts from CTC. I am very happy with the guys at Benson's because they are very knowledgable and always sell me good parts at a good price. If you are offered a choice, get the u-joints with a grease fitting. Merrill > >>> > Thanks, > [quoted text clipped - 9 lines] > > - Show quoted text - Telltale rust will be seeping from the seals. God Bless America, Bill 0|||||||0 mailto:LWHughes3rd@aol.com http://www.billhughes.com/ > How can I tell when I need to replace my rear u joint on my 95 YJ? Any > visible signs? I am noticing some unexplained vibration. > > Thanks, > > Greg > How can I tell when I need to replace my rear u joint on my 95 YJ? Any > visible signs? I am noticing some unexplained vibration. > > Thanks, > > Greg Go ahead and replace the U joints, You are probably going to have to take them apart to see if they are bad and as long as they are out you might as well. |
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