1956 Powerglide Adapter to Block

[John C.]

Hi All,

Do the 5 top PG adapter to block bolts have lock washers on them?

Thanks!

John

[Mike M.]

Re: 1956 Powerglide Adapter to Block

did u check the assembly manual? i'd guess they weren't used but its been too long since i assembled our 55 and 57 with PG's. mike

[John C.]

Re: 1956 Powerglide Adapter to Block

Hi Mike,

My assembly manual went with the car.....I just don't remember anymore.

Thanks!

John

[Rod K.]

Re: 1956 Powerglide Adapter to Block

The AIM for PG option pictorially shows lock washers but doesn't call them out as I assume they're part of the Engine Assy as delivered from Flint. Nothing shown for standard trans assy bell housing to block.

[David B.]

Re: 1956 Powerglide Adapter to Block

For the 56-57 Powerglide Transmission, 2 different bolt sizes are listed as being used for Flywheel Housing to Engine Block both used a plain 5/16 regular spring lock washer. The part number is 103320 it should be between .0080 & .0040 thick. The 2 bolts listed as being used are part #s 100125 & 100124. They are both listed as having a plain finish. #100124 is 5/16-18- 1 1/2" and #100125 is 5/16-18- 1 3/4" long. You should be able to determine what bolts go where.

[John C.]

Re: 1956 Powerglide Adapter to Block

Hi Rod and David,

Ok, lock washers it is..... thank you so much!

John