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Old 08-11-2004, 01:05   #1 (permalink)
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frown lowering block probs

hey, just looking for some answers, just put 2" lowering blocks into my xw and had some weird things happen, first of all, when accelerating, a really bad vibration in the car happens which gets worse the faster i go and harder i accelerate, and also i get really bad 'clunking' noises from near the diff when putting into gear (its an auto), could these be related to lowering blocks? anyone had same experiences? thanx
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Old 08-12-2004, 05:57   #2 (permalink)
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Re: lowering block probs

all you can do is take the blocks out and see if its fixed.
They can walk around and increase spring tramp I have heard....
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Old 08-12-2004, 06:09   #3 (permalink)
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Re: lowering block probs

The vibration can. The pinion angle has changed.

Brenden
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Old 08-12-2004, 06:17   #4 (permalink)
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Re: lowering block probs

hi there i have an XB with the exact same problem..........see the thing is by lowering your car, it has changed the pinion angle (the tailshaft angle has changed) i have been told by lifting the gearbox with some spacers will help...........i lifted my gear box with a washer in between the gearbox mount and the tailhousing........where the studs are and it has improved it slightly, i will need to make up something else that will lift it more though, cause it hasn't improved it quite enough (only lifted it 3mm).

From what i can see, both ends of the tailshaft are are fighting each other because it's on the wrong angle hence causing vibration.........you haven't damaged anything, but i know the feeling, but i am pretty confident in lifting the gearbox slightly, probably wouldn't hurt to give it a try........let us know how u go!
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Old 08-12-2004, 06:31   #5 (permalink)
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Re: lowering block probs

There is a way around it without changing the pinion angle. As you'd have to mount the like the ones in my current XB. My prior ones on my old XB were mounted between the diff and spring saddle. Vibrated really bad. I had the pinion angle set but it never sold the issue as I continually chopped out unis.

This current XB has no issues. I do have a pic but I'll have to find it. If I find it? I'll post it.

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Old 08-12-2004, 07:00   #6 (permalink)
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Re: lowering block probs

hey thanx for that guys, one other question? if i got the springs re set wouldn't that cause the same prob seeing as though the diff is lifted any ways? and yeah i would like to see the pic if u can find it thanx brenden

cheers guys

Tim
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Old 08-20-2004, 07:01   #7 (permalink)
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Re: lowering block probs

I think your clunk may be due to incorrect blocks, there are 2 sizes for the centre hole.

The pinion angle will be the vibration cause.
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