Search results

Maybe I'm wrong in my previous post where I said it won't fit. I assume if they sent you a boot for a shaft they made it will fit. I don't recognize the boot though, it looks like a stock replacement to me. When people say it will fill up with mud and water, that is only if you tear the boot...

From our website, XB = Boot, XC = Cap (dust cap, what the OP has now) "With the XB configuration, we will use a heavy rubber boot which is banded down with stainless steel banding to seal all of the contaminates out and keep the grease in. The XC configuration uses the same slip yoke & spline...

I'd like to take a moment to acknowledge how funny it is that the OP asked "4.56 or 4.88?" and now we are 5 pages deep discussing physics/mechanics. It makes me imagine a situation in which someone askes Neil deGrasse Tyson "What time is it?" to which he replies "To answer that question we first...

This is so on point! I was actually talking with my dad (Tom) this morning about creating a graph like this. Where it really gets complicated is when you add in waves for the tires, engine, transmission, heck probably even the wind turbulence. And then I think you'd have to plot things out so...

Not at all! I hope my reply didn't come across as defensive. We're all just sharing our thoughts and trying to help each other and others understand these complicated issues. I appreciate your and everyone else's input as I can otherwise be too narrowly focused on the one thing I know, drive...

Okay, I'm back with more math that I may or may not fully understand. I knew that the increase in force (vibrations) couldn't be linear but couldn't figure out how or why. It is not exponential, it is quadratic. I think. When I was first doing the force calculations I was using an overly...

I've spent the last two hours trying to wrap my mind around some of the concepts discussed in this thread. Somehow this has turned into some high level math and engineering. It certainly has my brain feeling like it needs a nap. Probably because of my "calculations" the convo has taken a turn...

I'm going to add to the conversation again. It has been expressed by others on this thread that the potential for vibration problems is insignificant because there is only a 5% difference between 4.88 and 5.13. I think this is paradoxical because if 5% is insignificant in terms of the...

I think one thing we are all missing in our replies is qualifying what "Highway speeds" means. In some places it means 55 in others it is 80+. I don't think anyone has asked the OP what typical highway cruising speeds are for him. Does anyone know the math to figure shift points based on the...

Sounds like I should have read the whole thread before commenting. Or refrained entirely. :cool: I didn't read the part about the transmission and overdrive. I trust @Jerry Bransford's opinion here and it sounds like his tire diameter and gear ratio work out similarly to 33s with 5.13 and he of...

Also, if you gear to high (low number like 3.73 or 4.10) your drive shaft as well as your engine and everything else upstream from the pinion is going to have less of a mechanical advantage. This means they will have to work harder to move your Jeep forward, this puts more strain on things and...

Believe it or not I just created a drive shaft rpm calculator inspired by this post. It is a common question to consider when deciding gear ratios and determining some other things. We've always known how to do the math but I figured it would be a good thing to have as a resource for people on...

What an American thing to do, take a joint that moves in two directions and over-exaggerate its abilities by calling it "Universal". Certainly more marketable than "wobbly joint" or something like that. I think this is just because we say what is easiest to say or we say what we've heard other...

Yep. I'm not even saying that things like the flexible couplings are a bad design, just that there are certain things that work well for certain applications. I think of it like a video game where you can choose your characters strength, speed, agility, ect. but you only have so many points to...

I'm assuming you are talking about something like this https://www.vibracoustic.com/en/product/nrg-disc-flexible-rubber-couplings/ Could be used, theoretically, but it wouldn't be something that could easily be done. You'd have a hard time finding any drive shaft shops that can build one this...

Sounds like there is some forum drama that I don't know about or care about, unless it's something about them ripping people off or being dishonest. My interactions with them have been good and pleasant.

Answered in-line in red again.

This of course could be almost anything or possibly several things at once. Here's a good way to check for loose parts on the drive shaft(s) though. A loose part. This could be on the front or rear, both should be checked. on some vehicles, even in 2WD the front shaft is spinning passively. A...

There's my answers in-line in red font.

I'll agree with the answers above and in addition to the light reading @freedom_in_4low recommended I'll add to the list the following page https://4xshaft.com/blogs/faq/diagnosing-drive-shaft-vibrations?_pos=1&_sid=d6ec76a03&_ss=r.