Transmission has been out of 81 BJ42 for quite some time. Need help on the bolts between the block and bellhousing .Apparently they are missing. The 3 on top that go through BH with threads in block 12X1.25X45 ? And the 2 on the side with threads in the BH that come from front ...12X1.25X40 ?? Would really like any info including part numbers and what they had for washers from the factory. Thanks