View Full Version : rear main seal
04-24-2006, 01:06 PM
can the rear main seal be changed on a 1980 350 chevy with out removing the crank shaft, the engine is in a 55 chevy.
04-24-2006, 01:12 PM
The answer is yes.
Thier is a special tool that you can use to replace the seal without removing the shaft.
They sell it at summitracing.com
Here's the link to the tool
04-24-2006, 01:26 PM
thanks otis, but is that the only way?
04-24-2006, 05:27 PM
Yep, that's the way it's done.
Hardest part of the job is getting the pan off.
04-24-2006, 06:13 PM
Everett i have done it without that tool but is a royal pain in the rear. I used a hooked tool to get it pulled out but it took a whole lot of patience. The tool would make it a whole lot easier and safer on the crankshaft. Terry.
04-24-2006, 09:49 PM
The last motor I did a quicky on, I replaced the crank and bearings without removing the pistons. That was nerve wrecking! I knew the engine was a fresh rebuild, but I discovered they used a damaged crank.
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