dave1969
09-21-2013, 15:49
Hi, Im new here, Just picked up a 6.5 td for my 86 3/4 ton 4x4 swap. Checked the casting numbers, 122555586 ? looks like 586 or is it 506. Date code is h206, august 20 1996? are these blocks junk? Thanks for any help.
View Full Version : 6.5 swap.