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?

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.

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.

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.

Not a problem. :biggthump

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??

sounds like an axle wrap problem you need some of these

Click me

no bump here! lol.

Though it did do it when I had 2" blocks as well.

Hmm interesting. Thanks Downey. :)

Yeah, that sounds like Axle wrap.

did you stack 2 inch bocks on top of each other? or what

No, it's one block. Aluminum (I know, I ordered iron ones).

yea mine did that when i had a block but traction bars might help that but idk

My 2 month old thread came alive again! lol

I just deal with the bump...Im the only person that drives my truck, so I dont care