sdokter Posted March 19, 2009 Share Posted March 19, 2009 Okay I have a 1990 comanche, that has really bad DW at about 25 miles an hour. What is the easiest way to correct it. Link to comment Share on other sites More sharing options...
wolfpackjeeper Posted March 19, 2009 Share Posted March 19, 2009 telling us more about the truck (lift, tires, parts replaced) would be a start. Other than that it is just throwing money and parts in a hole... Link to comment Share on other sites More sharing options...
mvusse Posted March 20, 2009 Share Posted March 20, 2009 What exactly is it doing. Death wobble is defined by side to side shaking so violently the only thought going through your head is "HOLY CRUD, I'M GONNA DIE!". The only way to stop it is to come to a (almost) complete stop. I have personally experienced this at low speeds due to front wheel alignment (toe-in) being off by two whole inches after a lift, but normally wheels that far out of alignment do not happen. Aside from that death wobble usually happen at speeds upwards of 50 mph. It is possible you do have DW, but I'm guessing you have something else. We need to know a description of what you are experiencing, history of the vehicle if you have owned it for any length of time, and specs on front suspension and steering. What parts have been replaced or adjusted, do you have any lift, if so how much and with what parts, etc. DW can have 100 different causes, and 100 different fixes. Normally if your wheels are aligned, tires are balanced, ball joints are good, tie rod ends are tight, track bar and bracket are tight and control arms are tight with good bushings you should be good. Link to comment Share on other sites More sharing options...
sdokter Posted March 20, 2009 Author Share Posted March 20, 2009 It is a 1990 jeep comanche with 9 inch coils 2 inch spacer, it has an adjustable track bar drop pitman arm, adjustable upper control arms, fixed lowers, control arm drop brackets and 36 inch super swampers. Link to comment Share on other sites More sharing options...
mvusse Posted March 20, 2009 Share Posted March 20, 2009 Based on those tires I think you simply have a front tire out of balance. Super Swampers are almost impossible to balance, and the balance will change as they wear. Link to comment Share on other sites More sharing options...
wolfpackjeeper Posted March 20, 2009 Share Posted March 20, 2009 It is a 1990 jeep comanche with 9 inch coils 2 inch spacer, it has an adjustable track bar drop pitman arm, adjustable upper control arms, fixed lowers, control arm drop brackets . this is probably your problem. why all the lift? to fit 36"s you should not need that much. Probably have a tire out of balance, put some air soft bb's in the tires. Beyond that I would start checking out suspension components, that much lift and that much tire will wear stuff out quick. Link to comment Share on other sites More sharing options...
Pete M Posted March 20, 2009 Share Posted March 20, 2009 Out of curiosity, have you gotten the truck aligned? Link to comment Share on other sites More sharing options...
88mjmanche Posted March 20, 2009 Share Posted March 20, 2009 wow 11 inchs of lift that alot but yea use some air soft bbs they worked good for me i put in 8 ounces with me 32 inch swampers. but yea why 11 inchs ive seen 5 inchs with 36s. but antidisestablishmentarianism ev GO BIG OR GO HOME i guess. :nanner: by the way can you post a pict of your jeep i want to see this beast Link to comment Share on other sites More sharing options...
Geonovast Posted March 20, 2009 Share Posted March 20, 2009 Couldn't the drop pitman putting the draglink out of parrallellness with the trackbar cause something like that? Link to comment Share on other sites More sharing options...
wolfpackjeeper Posted March 20, 2009 Share Posted March 20, 2009 Couldn't the drop pitman putting the draglink out of parrallellness with the trackbar cause something like that? It will cause bump steer, not sure about death wobble though. Link to comment Share on other sites More sharing options...
Eagle Posted March 20, 2009 Share Posted March 20, 2009 Couldn't the drop pitman putting the draglink out of parrallellness with the trackbar cause something like that? It will cause bump steer, not sure about death wobble though. :agree: Yep -- bump steer. Shouldn't contribute to death wobble. However, with that much lift I would expect the tie rod end on the drag link to wear quickly, and if that's loose it could be a contributing factor. The typical dropped pitman has about 1" of drop -- that's not much compensation for an 11" lift. What's the caster angle? Link to comment Share on other sites More sharing options...
wolfpackjeeper Posted March 21, 2009 Share Posted March 21, 2009 Couldn't the drop pitman putting the draglink out of parrallellness with the trackbar cause something like that? It will cause bump steer, not sure about death wobble though. :agree: Yep -- bump steer. Shouldn't contribute to death wobble. However, with that much lift I would expect the tie rod end on the drag link to wear quickly, and if that's loose it could be a contributing factor. The typical dropped pitman has about 1" of drop -- that's not much compensation for an 11" lift. What's the caster angle? at 11" of lift I would expect around 30deg (joke) Link to comment Share on other sites More sharing options...
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