1 peice is just that, one peice u gotta remove the crank to replace it, two peice is two peices, usually a rope seal as another name, 2 peice rms is from 86? and back, while one peice is from 87 and newer, i dont remember. i kno my 72 400 sbc is a 2 peice
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2005 Colorado Z71 - Supermod tuned, SuperSparkz, Resonator delete, SuperMod PTB
next up - 3" lift, Gutted cat/retune/muffler
Past Toys:
1983 Trans AM, 1988 Trans AM, 2001 Dodge Ram 1500 Off-Road, 1986 Camaro IROC, 1984 Chevy K10 lifted, 1988 Mustang GT, 2006 Silverado 2500HD
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