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needboost
06-01-2016, 05:19 PM
I getting ready to open up the motor from my Mustang to investigate what we believe to be a bad lifter at the same time I'd like to fix the leaking rear main seal. The block is a mid 70's Mexican block so it has a two piece rear main seal and I was just wandering what brand any of the people on here with experience with these older blocks would recommend. The current seal is a Fel-Pro #BS30136.

needboost
06-01-2016, 05:27 PM
If the crank makes any difference it has a RPM International forged crank Part # DG3302 with 2.249" Main J.

ZR
06-01-2016, 05:32 PM
stagger where the seals meet in relation to where the oil pan meets the block.

ZR
06-01-2016, 05:34 PM
http://www.summitracing.com/int/parts/fel-2901/overview/make/ford

ZR
06-01-2016, 05:35 PM
They also offer this, sold as marine / severe duty.

http://www.summitracing.com/int/parts/fel-17746/overview/make/ford

needboost
06-01-2016, 06:18 PM
http://www.summitracing.com/int/parts/fel-2901/overview/make/ford

That's the one I had planned on getting so far...