The balance of shock stroke and body length is quite important to get a car to handle at all well.
If your exchanging shocks between brands you really need to make sure the closed length (fully compressed position) is near identical to the shocks your replacing. The open length (fully extended) can be changed with different length shafts and/or under piston spacing.
I'm not 100% sure without measuring but I think the Kyosho big bore shocks are much closer to the AE closed length than the Durango ones
Good luck.
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