Wayne Due C4 Front Suspension Question

[FrankenChevy]

I have a Wayne Due C4 front clip in a '67 Camaro and it has two sizes (lengths) of spacers to mount the upper control arms to the frame. I've looked at pics on this site and others and now I'm totally confused on whether the long spacer goes in the front bolt or back bolt. Anyone know? I'm sure spacers/washers will need to be added but I need a starting point. Thanks.

[JSR69]

Mine has the same size spacer front and rear. However, I haven't had it aligned yet, so that may change.

[ProdigyCustoms]

Thick on the rear for more caster with less shims

[beyonda68]

Do you know what kind of sway bar you ran with this clip.

[marolf101x]

https://1speedway.com/index.php?route=product/product&path=76&product_id=90