It is to show rear main differences, newer 1 piece versus early 2 piece rear main sealI Googled it. Is this a 400 sb crank?
View attachment 108041
It is to show rear main differences, newer 1 piece versus early 2 piece rear main sealI Googled it. Is this a 400 sb crank?
View attachment 108041
As noted one being a one piece seal (left one, all '86 up production blocks), the other the two piece seal (right one, pre '86 production, that is the 350 flange.)I Googled it. Is this a 400 sb crank?
View attachment 108041
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