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Originally Posted by pawoSD
In the rain....must be nice!! Its SIXTEEN degrees here currently! And snowing, hard!
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I have been watching the weather... You guys are crazy!
It was 85 here yesterday and today until the rain came. Now it is in the mid 70's.
Quote:
Originally Posted by winmutt
You think the DS and rear end are balanced.
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Well, it looks like it is all original. But, at some point in time someone painted the driveshaft and painted over the factory paint marks. So, I could not line up the rear with the "yellow and the green". I'm going to try rotate it over to the other 2 holes and see if I can find the sweet spot. If not, I'm just going to take it in and have the thing re-balanced.
Quote:
Originally Posted by tr1cky
I am thinking that I may have a similar problem with the clunking in an 83 SD. Now that you have it apart what would you have checked prior to the removal? Is there a way to determine bad axleshafts vs. a bad pumpkin?
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I have had 2 to play with in and out of the car and I have played with a few in the salvage yards.... Now I know what to look for. First of all, a bad ring and pinion (uneven gear wear) willl make some noise at any speed but the noise will "peak" at lower speeds. Say around 45 to 55 MPH. Sometimes a little lower.
I would have replaced the axle shafts first (now that I know). If you grab the axle shaft at each end and twist there should be zero play, no slop at all. My old ones had 1/4" of slop while twisting.
Also, where the axle goes into the diff. grab the "big can" and push in and out. There should be very little to no play there too (my new ones have no play at all anywhere). On my old axles (autozone crapola) the PO did not take time to install the spacers. So, there was alot of play in this area. About 1/8"!!
I'm sure this was causing noise as well.
In regards to the diff. itself... put it in the air or up on ramps (securely), chock the front wheels, put the car in Neutral and get up underneath. Grab the pinion at the rear flex disc and grab one of the axle cans on the side of the diff. While holding the can completely still, twist the pinion shaft back and forth and see how much play you got. Both of my rear ends only have about 1/32" play. It is so small that it is difficult to measure. I have seen them with up to almost 1/2" play.
I replaced the diff. mount when I bought the car at a cost of $70. So, I ruled that out early on.