1970 J81 rear spoiler hardware

What are the correct screws that hold the pedestal brackets to the spoiler? Also need to know the dimensions for the pedestal adjustment bolt...1/2 hex hed and 5/16 thread, but how long?

Also looking for original 1970 cuda spoiler brackets.

pedestal

internet pic of screws... are these correct?

I don't have access to mine at the moment, but the J78 is FRONT

Dan,

fixed it. Checked the fender tag... its J81.

Mine looked very unique like they had two thread sizes on them. never seen any others like them.

2

From the 'net...

HI-LO® Fasteners - For Plastic and Other Low Density Materials
Hi-Lo
The HI-LO® fastener is the minimal performance solution for fastening in low pressure environments such as plastic, particle board, masonite, and wood. It’s designed with a double-lead thread where the HI thread is sharper than a conventional one. More material is trapped in between the threads which helps to resist pull-out. This also allows for a lower driving torque.

Excellent, now at least I know what they're called. Thanks. I'm pretty sure they were the originals on my spoiler. I pulled the spoiler from a wrecked 1970 Cuda that was very original and never modified. Maybe someone else can chime in show what they have to be sure also.

This what 71's used guaranteed.
I've also seen these on 70's but have not seen them all.

Quote:

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Mine looked very unique like they had two thread sizes on them. never seen any others like them.

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Thanks for the picture.