0 Members and 2 Guests are viewing this topic.
I have an extra drive shaft for that configuration.You are welcome to try it as a test part.That way you can eliminate the drive shaft from your list of possibilities.Do you have a build thread?My opinion is that it is not drive shaft or diff.Sounds like engine run ability to me.Keep the info coming. The More info the better I can help.
Do you have the u-joints phased right? The only thing I can think of if you swapped flanges is you threw the balance off. Best thing to do is take it and have it balanced.
Pinion angle issue possibly? Is she stock or has the rear hight been adjusted?
Does it feel at all like it could be dw coming from through the steering?
That's about the speed it normally occurs. I've had drive line vibes and the feeling from them really could only be translated by holding the shifter. You could feel the truck moving but grab the shifter and it was amplified.
No sir. Death wobble normally occurs about 25-35 mph.
Death wobble is simply an improper alignment of the front wheels. When the caster and camber aren't correct the front wheels will begin to "wobble" left and right fighting one another until they reach an agreement on where they need to be going.
I realize this may not be your issue but it always worth learning something to rule it out.On another note, I have probably replaced over 300 toyota u joints in the past years. I have never marked the axle flange side of the joint. The only thing I have ever marked is the spline section as to keep it in sync so the balance isn't affected. if it's a 2 piece shaft even more important to keep it all lined up.
when you lift these trucks with a non cv rear driveshaft(single ujoint both ends) you almost always get some kind of vibration even if your transfer case and pinion flange angles are the same. using long shackles will start to point the pinion up which creates a phasing problem.you could shim it down but if your driveshaft angle is around 15 deg or more it is recommended to use a cv rear driveshaft and point the pinion up to the transfer case. tom woods has a good writeup on this http://www.4xshaft.com/driveline101.aspquote from above link: "There are other factors to consider though. Beginning with what you are willing to live with. Bear in mind that with a driveline pushed to this 15 degree limit you may notice a slight (slight can be a matter of definition) vibration on smooth highway at about 45-50 M.P.H. when you flutter the gas just right. Most people can live with this. When in doubt or if you are near this upper limit, I recommend that you install a double cardan (C.V. ) type drive shaft."I recently got a cv rear shaft and it fixed at least 3 issues I thought were unrelated.1.a feeling like the clutch was slipping when taking off from a stop2.noise that sounded like grinding in the transmission that was most noticeable when coasting3.vibrations at certain speeds and road typesFYI, I have a single transfer case and a similar lift as the OP.
caster is adjustable with a cut and turn of the knuckles. it is practically a must on spring overs and would benefit most of us with a lift it's just a lot of work but there are a lot of good write ups on it. a high pinion combined with slight shimming may help caster also but shimming without a high pinion would mess up your front cv driveshaft anglehttps://www.google.com/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=toyota%20axle%20cut%20and%20turnthe only other option is to use shims for caster combined with a double cv shaft (pictured)
If the spring hanger has a 1" drop your shackles should only be 4.5 inches bolt hole to bolt hole. This will set the frontend at about factory setting on the caster. The stock shackles are 3.5 inches bolt hole to bolt hole. So it makes sense if you drop the front of the spring 1", you drop the rear of the spring 1",
Started by BoMXtreme General 4WD Discussion
Started by toymech Toyota Pickup/4Runner Tech 1979-95
Started by jrock « 1 2 » Engine
Started by kauaikid Toyota Pickup/4Runner Tech 1979-95
Started by -Jake- Engine