ck42... for the back ones I think you pull the back seat (upper) and there is a round plastic cover on each side to get to them. At least that's what it looked like to me, haven't done the back shocks yet.

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1985 300D Turbo ~225k
2000 F350 (Powerstroke) 4X4, SWB, CC, SRW, 6spd ~148k
1999 International 4900, DT466e (250hp/660 ft/lbs), Allison MD3060 ~73k