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Old 06-07-2007, 06:32 PM
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axle clearance

I have a chopped '48 Dodge with '85 drivetrain and rear axle. I raised the rear spring hangers ( '48 original springs ) up 7'' , resulting in the axle drop of 3 1/2 ''. I only have about 4 '' of clearance between the axle and the bump stop, and the differental bumper. How do I determin how much clearance I need ?...

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Old 06-08-2007, 10:00 AM
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too tough ?

either this question is too complicated or too tough to answer !..................just trying to stay on top, thanks "Brew"
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Old 06-08-2007, 10:37 AM
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That's up to how soft the springs are versus the weight of the rear part of the car. Really soft springs will hit that stop.

Sometimes the older cars had a really long stop, you could shorten it if possible. Or relocate the stop if there seems to be a better spot for it.

If the car is together, get a couple of guys to stand on the back bumper and bounce it to see?
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Old 06-08-2007, 10:48 AM
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Maybe the question isn't to tough but the answer to obvious. If you didn't have any clearance it would still work ok but you would feel every little bump you hit. The more clearance you have the bigger the bump you can hit before the car gets a jolt from direct contact. Go for a ride down a rough road and let your seat be your guide.
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Old 06-08-2007, 12:14 PM
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just thought maybe there was somrthing I hadn't thought of........... so I guess, if I talk really nice , I can get my wife to jump on the bumper while I watch...............maybe I should call the neighbor guy over instead.
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Old 06-08-2007, 01:35 PM
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you want 300 lbs to 500 lbs standing on the bumper. measure the clearance and compare to NO weight.

This will tell you how soft your springs are. Also, a good set of gas shocks will limit how fast the springs sag and how often you hit the bump stops too.
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Old 06-08-2007, 05:22 PM
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air shocks ?

just had a thought... gas shocks would probabley be the answer, but how would air shocks work ? What kind of ride can I get from them ?
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Old 06-08-2007, 10:15 PM
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Air shocks to keep you from bottoming out would be too stiff.

I have some monroe matic coil over gas shocks on my S truck and it made all the difference in the world with the weight I normally carried. Less sag and a whole lot smoother ride.
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Old 06-09-2007, 09:13 AM
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coil over shocks sound good, like maybe that would stiffen it towards the end of the travel (?)..............thanks guys
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