964 / 993 Control Arm Bushings
#32
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#33
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Have a great trip to th UK. Say 'HI' to Pam from Lisa & I.
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Scott
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PS -- you may have another suspension install customer in Lisa if she decides to take the plunge this year for the rivi blue cab.
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The caster eccentric needs to be marked for its position prior to removing the control arm so that it can be replaced in the same position it was before. Here is where it gets complicated. Since the old foreward bushings naturally have quite a bit of lateral movement, replacing the bushings *could* reposition the arm about its pivot centerline. Changing caster also effects camber and toe. How large could this potential change be? I honestly dont know as I havent spent a lot of time measuring before and after geometry. Or, I should say, the digital inclinometer I used to measure before and after couldnt detect a difference.
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#36
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Chris,
Second the comments for a great product, especially timely as the rubber bushings in the fleet are becoming, well - quite senior ....
Regards the queries of a need for realignment, my thought would be to press the ball joint out of the hub/spindle - leaving it attached to the LCR with the caster eccentric untouched: as long as the new bushings preserved the coaxial line of the OEM rubber ones, the alignment should remain unchanged.
Second the comments for a great product, especially timely as the rubber bushings in the fleet are becoming, well - quite senior ....
Regards the queries of a need for realignment, my thought would be to press the ball joint out of the hub/spindle - leaving it attached to the LCR with the caster eccentric untouched: as long as the new bushings preserved the coaxial line of the OEM rubber ones, the alignment should remain unchanged.
#38
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Chris.
I checked the 964 this morning and there is some movement of the control arm. I have not checked the 993 yet, but since the two cars have the same mileage and are only 2 years apart I assume they will both need replacing.
I am anxiously awaiting the DIY and then we can coordinate after your return from the UK.
I checked the 964 this morning and there is some movement of the control arm. I have not checked the 993 yet, but since the two cars have the same mileage and are only 2 years apart I assume they will both need replacing.
I am anxiously awaiting the DIY and then we can coordinate after your return from the UK.
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I have complete the DIY guide, but its too large to post. Its a word.doc and need to figure out how post it such that all can have access to it. I dont have an .FTP site. Anyone care to host it for me?
Of course, I will email it to anyone who asks. Also, I will email it to all of those who have purchased, my pleasure.
BTW, the first draft of the DIY was 20megs! Yikes! I found that if you right click any of the images, click format picture, click the picture tab then click the compress button, it will decrease the file size dramatically. Down to 571K in my case.
Of course, I will email it to anyone who asks. Also, I will email it to all of those who have purchased, my pleasure.
BTW, the first draft of the DIY was 20megs! Yikes! I found that if you right click any of the images, click format picture, click the picture tab then click the compress button, it will decrease the file size dramatically. Down to 571K in my case.
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Wow this is a huge development. Nice going Chris. Three questions:
1. Do you need a press to get the old ones out?
2. Should I expect slightly increased harshness from the front suspension?
3. What is the expected service life of the urethanes?
1. Do you need a press to get the old ones out?
2. Should I expect slightly increased harshness from the front suspension?
3. What is the expected service life of the urethanes?
#45
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ok. Newbie question.
What is there to gain and how do you tell if you need it? I have 90K on my 95 cab. I did change the suspension (HandR) last year and replaced the sway bars with the turbo.
Ron
What is there to gain and how do you tell if you need it? I have 90K on my 95 cab. I did change the suspension (HandR) last year and replaced the sway bars with the turbo.
Ron