suspension mods??? - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 12-31-1969, 08:00 PM   #1
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I just can't find the springs I want and the cost of having them made is not worth it right now...sooo I was thinking cut em. Anyone done this on there Bonneville? I have heard that cutting them too short will destroy the suspension (struts). Personally I would Never even think of this option (Hack Job) in the past but hey I have tried almost everything else once. would I need different struts to do it?

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Old 12-31-1969, 08:00 PM   #2
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You cant cut factory springs, they are not designed to be cut, it will mess up your entire suspension and destroy things. No factory spring can be cut, only aftermarket ones. I am going to compare my springs to my neighbors 98 Grand Prix GT to see if they are the same so I and whoever else has a Bonneville can use the Grand Prix Eibach or Progress springs.
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Old 12-31-1969, 08:00 PM   #3
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HEy can u please ask your grand prix friend if you can take off his front v brace there should be two on this engine bay where the airfilter unit is.... And see if there is any way to bolt them into our bonnies. It doesnt matter if i have to drill as long as the plates are flush with the bodys metal.
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Old 12-31-1969, 08:00 PM   #4
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I am going to undergo some suspension mods to my bonny. Once it warms up im getting larger bars and poly graphite bushings.
Mainly because this car handles like a boat on wheels. I mean anything has to be better than stock.
Ill keep ya posted on any mods i do w/ pics
most likely the bushings are going in,
some x braces and a possible larger and bigger underhood brace.

If anyone has any suspension mods let me know.
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Old 12-31-1969, 08:00 PM   #5
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Currently I am trying to see if the Next Level sway bars will fit on our Bonny'*. I hope it will. And I will probably see also if the Eibachs and Koni'* fit our cars too so I can lower it and have an "semi" adjustable suspension. Those are my theories and ideas. And boseman350, use polyurethane, better stuff.
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Old 12-31-1969, 08:00 PM   #6
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Actualkly poly graphite is better because it conatins graphite inside the polyurethane which makes fora less squeeky ride.
I had poly graphite in my montecarlo w/ a full suspenison upgrade.(autocross worthy)and it handles like a dream and no squeeks.
poly urethane is basically the same thing but w/ more squeeks.

the hard part is finding poly graphite for our cars. there are tons of options for other cars but no one likes us.

Ill keep u posted
also if you do go poly route make sure u use lots oflube when installing the bushings.
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