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Old 01-23-2012, 04:29 PM   #31
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Quote:
Originally Posted by andiesel View Post
ok to sum up so far:

- Leaf Spring suspension
- Dana 35 Axle (OEM)
- Detroit Limited Slip Differential (based on all of the pics on here vs. the pics I've taken it looks identical. thank you everyone for posting pics and links...very helpful)
- I am MISSING my rear sway/track bar (also, the lift was done with spacers by the previous owner and the leaf springs are shot...that's my big 2012 project to replace the suspension)

I changed the fluid following this set of instructions: Axle Differential Service

I used Castrol 80w-90 which says it works fine for limited slip...so I'm going to assume I don't need any additives at this point. While I was cleaning out the insides I did not see any gouges, obvious wearing, or marks that would indicate something was going horribly wrong.

The banging noise has been going on since I purchased my Jeep 2 years ago. It happens as I'm cruising to a stop or slowing down. I would say on average driving around town this will happen 1-2 times while running errands on city streets (all stop and go).

After I changed the fluid I still got a bang, but while testing out turns it felt a lot smoother.

How worried do I need to be about the banging?
Im still gonna guess that assuming the noise is coming from the differential and u have a detroit LOCKER that the noise is normal. Its not uncommon for autolockers to do this...but it sounds like the behavior varies from one locker to another.

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Old 01-23-2012, 09:06 PM   #32
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Allow me to clarify a couple things on your summary for you.

Yes, you do have a leaf spring suspension, but it is not in the stock configuration. In stock configuration your leaf springs are below the springs. You have a SOA (spring over axle).

You have a detroit Locking Differential (or locker), not a Detroit Limited Slip Differential.

Last, your track bar is missing. This is not necessarily a problem. Many of us YJ guys get rid of them.

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Old 01-23-2012, 09:31 PM   #33
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Quote:
Originally Posted by daddyjeep View Post
Allow me to clarify a couple things on your summary for you.

Yes, you do have a leaf spring suspension, but it is not in the stock configuration. In stock configuration your leaf springs are below the springs. You have a SOA (spring over axle).

You have a detroit Locking Differential (or locker), not a Detroit Limited Slip Differential.

Last, your track bar is missing. This is not necessarily a problem. Many of us YJ guys get rid of them.
thank you for the clarification.

I would love to get a track bar on there to see if it gets rid of my "wiggle" which can be terrifying at fwy speeds and send me into the next lane if I hit a bump.
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Old 01-23-2012, 09:44 PM   #34
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That would not be because of a missing trac bar, thats more than likely a very bad steering linkage setup. The ONLY job of a trac bar is to center an axle laterally, that is; side to side. Leaf sprung axles do not need a trac bar, and in fact its 2 completely different types of suspension that contradict eachother. Why jeep put it on the YJ is completely beyond me. The only thing i can think of would be because the narrower CJ7 was more roll over prone, so the engineers must have figured a trac bar would help. To get to the point, trac bars are meant for coil sprung axles, not leaf sprung axles.. post a picture of your steering linkage and we'll try and figure out if that should be addressed.. It may also be that your tires need balanced, especially if its a speed-dependent wobble
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Old 02-03-2012, 11:47 AM   #35
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I'm happy to see these last two posts as I've been experiencing the same thing on my 94. This is after I had a 35 rear end rebuild due to a piston bearing going out and bent rear pass. side axle and diff case going down. Now I have what I describe as a 'floaty' feeling while in a turn. Any suggestions/pics would be greatly appreciated. I've looked at/in/around the thing til I'm blue in the face. Love to see a pic of what one 'should' be looking like. I've looked and at best I find diagrams of parts, not an honest to goodness jeep steering linkage on a YJ.

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