68 rear leaf spring bushings

[68SWB4x4]

Well I finnally got my diy4x shackle flip bolted up today (Yea I'm slow)

I want to replace the bushings in my stock leaf springs (at least the rear) But I remembered that the 68s are not 2.5" across like later years. I measured to double check and they seem to be 3" wide and 1 1/4" tall. I just want to double check if this is right before I go and order some new bushings.

Also has anyone bought poly bushings for their 67 or 68? I plan to call energy suspension tomorrow to see if they have any.

Thanks.