Topic: Front Shock To Tower Bolts, 67-70 -

[jwc66k]

There appears to be two different types of external tooth lock washers included as part of the bolt, used to mount the front shocks to the tower. The bolt is 42760-S8, as indicated on the 67-70 chassis manuals. The question is based on seeing a 9 tooth lock washer and a 12 tooth lock washer. The have the same head marking, an anchor (same manufacturer) but the teeth are a of a different design as well as count.
The questions are:
- is this a plant particular difference;
- is this a year difference, 67-68 vs 69-70.
Jim

[J_Speegle]

Not sure if you can figure out the number of teeth from a picture but will post a bunch for you to get a start with your research.  Put them all to the side a few days ago but you hadn't a thread to start collecting data for and didn't want to post them to the NJ 69 discussion

[Brian Conway]

Dearborn scheduled date June 19, 1969 Mach 1 SCJ.  Hard to make out but maybe able to extrapolate ?  Brian

[J_Speegle]

OK first submission - 69 San Jose examples in sequential order
Sorry their not clearer but the were clipped from larger area pictures I have on file

9R1080xx


9R1102xx


9R1115xx


9R1135xx


9R1200x


9R12436xx


9R135xxx


9R1359xx


9R1757xx

[Bob Gaines]

OK first submission - 69 San Jose examples in sequential order
Sorry their not clearer but the were clipped from larger area pictures I have on file

9R1080xx


9R1102xx


9R1115xx


9R1135xx


9R1200x


9R12436xx


9R135xxx


9R1359xx


9R1757xx

I see 3 different styles of nuts used in the pictures.

[J_Speegle]

I see 3 different styles of nuts used in the pictures.

Though the focus is the shock bolts I see two styles (the head details are difficult to see on some examples) of retaining nuts

Different style of forming the nut to make it a self locking nut it appears

Almost appears earlier and later (after the #9R1135 car)

Will have to see what the other plants have to offer. Will keep it to 69 for the first rounds

[Bob Gaines]

Though the focus is the shock bolts I see two styles (the head details are difficult to see on some examples) of retaining nuts

Different style of forming the nut to make it a self locking nut it appears

Almost appears earlier and later (after the #9R1135 car)

Will have to see what the other plants have to offer. Will keep it to 69 for the first rounds

  I know the emphases was on the shock bolt but couldn't help noticing the difference in the shock bracket nuts. I saw the typical tall flat top nut like the typical Dearborn style ,  a taller version of the rounded top nut  and a shorter version of the rounded top nut. I am very surprised at the variety of examples for one year (69) at SJ plant. I have never studied the 69 build at SJ so don't know if this is normal or not. 

[WT8095]

OK first submission - 69 San Jose examples in sequential order
Sorry their not clearer but the were clipped from larger area pictures I have on file

FYI two of the photos are duplicates, with a minor difference in cropping:

9R135xxx
9R1359xx

[J_Speegle]

FYI two of the photos are duplicates, with a minor difference in cropping:  9R135xxx   & 9R1359xx

Fixed it thanks

Now the same number of 69 Dearborn examples through the production year

9F02R1124xx


9F02R1137xx


9F02R1227xx


9F02R1230xx


9F02R1365xx


9F02R1561xx


9F02R1588xx


9F02R1826xx


9F02R2169xx