Originally Posted by macdoe

Hello, How much does the dealer charge to do the upper chain guides and timing chain for a 88 420 sel? Is a new timing chain tensioner, also recomended at this time? I am just pricing out the parts and wonder how much the labour would be should we opt out of this one. Also, wondering if the metal/or aluminum guide is better to have than the standard plastic/nylon or whatever it is made of and are they availible for both sides (upper chain guides) made out of that different material. Thanks.