Taking out secondary leafspring to reduce ride height and soften ride - Page 19 - Ram Promaster Forum
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post #181 of 183 Old 05-14-2017, 09:42 AM
carnut
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Originally Posted by Brian P View Post
There's another factor in ride choppiness that has been seldom mentioned ... Damper calibration.
IMO, that's the only thing negatively affected by lowering spring rate (single leaf) on lightly loaded vans. Stock dampers are set up for higher loads and spring rates. You will be over-damped with only one leaf. That will go away over time as they wear out.
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post #182 of 183 Old 05-14-2017, 10:09 AM
jimmbomb
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Originally Posted by carnut View Post
IMO, that's the only thing negatively affected by lowering spring rate (single leaf) on lightly loaded vans. Stock dampers are set up for higher loads and spring rates. You will be over-damped with only one leaf. That will go away over time as they wear out.
Is there a way to re-adjust those for us who have lightly loaded vans with only 1 leaf?
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post #183 of 183 Old 05-14-2017, 04:52 PM
Brian P
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As with typical OEM dampers, they're welded shut with no adjustments possible.

The main opportunity is to find an OEM damper from some other (lighter) vehicle that has the same end connections, and length close enough to work. If you are using one leaf you can probably live with dampers slightly shorter than stock if you have to. The minimum (compressed) length can be shorter but it must not be longer than stock (the damper running out of travel must not be the bump stop in compression).

Fortunately, these rear dampers have simple connections at both ends. They're simple enough to remove that anyone who wishes to play with this could simply remove one from the vehicle, take it in to an auto parts store, and see what else will match up.

From poking around looking at pictures, take a look at Chrysler minivan rear shocks and see if the eyes are the same diameter; if they are, give them a go ... should be cheap, too.
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