'84 300TDT rear shocks done...EASY!
My poor wife was puting up with the "bouncing ball" ride on her wagon for some time. We took the plunge and bought two new rear struts/shock absorbers and the two new resevoirs. I jacked up the car enough to have 6 inches between the bottom of the rear tires and the garage floor. I removed the rear carpet and panel and the two square hose access plugs. I un-did the hyd lines but left the fitting between the shock and hyd line on for now. I put my floor jack under the rear tire and jacked it up about an inch from bottom. The top shock bolts are tough as they are have loctite on them and only take a 5mm allen wrench to un-do them. I took a ball-peen hammer and tapped the tops of these bolts to break loose the loctite. They came loose after that. I then removed the fitting between the shock and the hyd line. (I left it in place to hold the shock from spinning while removing the top allen bolt). I then un-did the two bottom bolts on the shock and slid it out.
I took the new strut and clamped the bottom end GENTLY in my vice. I laid it somewhat sideways. I took a small funnel and wrapped some tape around the spout so it would fit snuggly and seal into the shock hyd hose opening. With the help of a friend, we poured oil into the shock while I SLOWLY pulled it out. I went back and forth several times to make sure that I pumped all of the air out. Once full, I put back in the Factory plastic protective plug in the shock to hold the oil. I have heard that these are supposd to be self bleeding but I don't see how when the only line to the shock is the highest point. I CAREFULLY re-installed the shock, the top and bottom mounting bolts, the fitting and the line. THEN, I let the jack out from under the wheel. I repeated the same thing for the other side.
The small metal "BOMBS" were easy to replace.
I started the car, made sure to have plenty of HYD oil in the tank and went under the car and bled the level valve off. I also un-hooked one side of the control lever from the valve and moved it up and down to actuate the suspension up and down. Once I was satisfied it was working good, I went to each shock and "cracked" each fitting with the engine off until the shock let down some. This, I figured, would let out any remaining air that might be trapped in the shock. I repeated it on the other side. I checked around for any leaks, washed the underside of any oil and put the rear carpet and cover piece back in.
All in All... it wasn't very hard at all. It took minimum tools and about 2 hours. I decided to replace the resivoirs because I didn't know their condition and didn't want to take a chance if they had some crud in them that would end up in the shock.
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My Truck.. 2007 DODGE, 5.9 Cummins, 6spd stick, 4X4. My car..1977 240D, OTHER WHEELS...1955 VW Oval window bug, European Delivery (Holland) with a 1700cc, 2 barrel, Porsche drum brakes. 1939 WILLYS Pick-up. 1967 Triumph 200cc Tiger Cub. 1976 Honda 550F 4cyl Motor Cycle.
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