This post is really more of a follow up post to earlier threads regarding problematic rope type rear main seals in vintage GMC (*and I guess Chevies too).
I am now a few months into the
Best Gaskets newest type of rear main rope seal on my 302 and am pleased to report that it is flawless! Nary a drop of oil. Best Gaskets have manufactured a new seal for these motors. It is excellent and they are to be commended on their commitment to resolving this plaguing problem for many of us with rear main ropes. What particularly impressed me with Best is that they recalled all of their existing stock in distributors and replaced it with the new seal. Most companies would just let the old stuff run out, but these guys are committed to their product for sure.
The downside to all of this of course is that now my undercarriage is beginning to rust from the lack of oil previously coming from the GMC inline "continuous undercoating system" more often found on 6-71s!
Seriously folks, I now can give my strongest endorsement on this new rope seal. They manufacture these in a very tight square rope design that is graphite/teflon impregnated and it is sealed up tighter than a frog's butt now.
Very happy.
I remember your problems stopping your leak(s).
