Rear main (crankshaft) seal question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

MattPSU · 05-09-2016, 09:54 AM

The 5.3L in my C10 has developed an oil leak that seems to be the rear main seal. I need to swap out the torque converter, so now's the time to change out the rear main seal while I've got it that far apart.

My question is, do you need a tool to align everything or not? I keep seeing videos of people using an alignment tool, but I can't find them for sale/rent anywhere.

Also - should I replace just that seal or should I also replace the rear cover seal too?

Any other suggestions/tips/input?

Thanks - Matt

05-09-2016, 09:54 AM	#1
MattPSU Registered User Join Date: Nov 2011 Location: Lyman, SC Posts: 734	Rear main (crankshaft) seal question The 5.3L in my C10 has developed an oil leak that seems to be the rear main seal. I need to swap out the torque converter, so now's the time to change out the rear main seal while I've got it that far apart. My question is, do you need a tool to align everything or not? I keep seeing videos of people using an alignment tool, but I can't find them for sale/rent anywhere. Also - should I replace just that seal or should I also replace the rear cover seal too? Any other suggestions/tips/input? Thanks - Matt __________________ Matt Criswell - Lyman, SC 1972 Chevy Cheyenne SWB - Build: Porterbuilt State 1 Front & Rear, Bolt in Notch, McGaughys 2.5 Drop Spindles, Boyd Welding Fuel Tank UPSTATE SC GM TRUCK CLUB: FACEBOOK WEBSITE



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