Installed 2" blocks - "bump" when taking off - Ranger-Forums - The Ultimate Ford Ranger Resource


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Old 01-13-2009
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Installed 2" blocks - "bump" when taking off

Over the weekend I installed some 2" lift blocks on my '98 Ranger. I already have Chevy Shackles and Explorer leafs. I have the shackles on the lower setting. Since installing the blocks, I am getting a bump when taking off. If I roll off very slow, it is not felt until I accelerate hard. Seems to me that it might be the famous slip yoke problem? Is there anyway to find out for sure? How do I go about greasing the yoke?

Also, where can I get a set of new u-bolts?
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Old 01-13-2009
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Slip yoke bump, I don't know any ranger that doesn't do it.

Just grease the input shaft...

Check your u-joints and your pinion angle too. When my pinion angle is way off it will clunk really bad.
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Old 01-13-2009
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Here is a link to the How To that i used. I did this back in Nov. and it still hasn't came back.

https://www.ranger-forums.com/forum2...ight=slip+yoke
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Old 01-13-2009
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Quote:
Originally Posted by RangerNDog View Post
Here is a link to the How To that i used. I did this back in Nov. and it still hasn't came back.

https://www.ranger-forums.com/forum2...ight=slip+yoke
Thanks for the link... pretty sure I just have a once piece drive shaft though, have to look tomorrow. Might be a different process.
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Old 01-13-2009
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The elusive slip-bump. My Ranger used to do that. I went to the dealership with warranty still active and they replaced the entire driveshaft and associated u-joints. For $100. Granted I probably could've taken it out, greased it and put it back in for less that $10 but oh well.
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Old 01-14-2009
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Originally Posted by dallas_01gt View Post
Thanks for the link... pretty sure I just have a once piece drive shaft though, have to look tomorrow. Might be a different process.
Not a problem.
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Old 03-17-2009
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I have a bump if I "punch it" in reverse (not forward though). However when I go forward again (slow or fast), it bumps again and doesn't do it again unless I punch it in reverse again. If I go into reverse slowly, it doesn't do it. I have 4" blocks. Is this the same problem, or something else??
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Old 03-17-2009
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sounds like an axle wrap problem you need some of these

Click me
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Old 03-17-2009
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no bump here! lol.

Though it did do it when I had 2" blocks as well.
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Old 03-17-2009
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Hmm interesting. Thanks Downey. :)
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Old 03-17-2009
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Yeah, that sounds like Axle wrap.
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Old 03-17-2009
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did you stack 2 inch bocks on top of each other? or what
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Old 03-17-2009
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No, it's one block. Aluminum (I know, I ordered iron ones).
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Old 03-18-2009
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yea mine did that when i had a block but traction bars might help that but idk
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Old 03-18-2009
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My 2 month old thread came alive again! lol
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Old 03-19-2009
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I just deal with the bump...Im the only person that drives my truck, so I dont care
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