Posted by Bill Zavatsky K3QEQ [172.69.48.149] on Wednesday, May 05, 2021 at 09:42:46 :
Sri cudn't grt back on last forum. Tnx fer info. Seems the Mack 673 engine has two versions. The 20 bolt is plentiful..they made a earlier 18 bolt version which is scarce. Tnx Bill
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