This from Mike Summa for #TBT:
For TBT- This was the Tinley Park Fire Dept.’s Truck 291, an Emergency One. I do not know any specs on this truck. So, please feel free to comment. Thank you.Mike Summa

Mike Summa photo
And from our files:

Larry Shapiro photo
TINLEY PARK T291 – 1991 E-ONE Hurricane 95′ rear-mount platform aerial (sold to Lansing)

Karl Klotz photo
#1 by Brad S on October 29, 2022 - 1:47 PM
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I believe this was the truck that was later sold to Lansing and used as Truck 107
#2 by Matt on October 27, 2022 - 10:25 PM
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This truck was built on the Hush aerial chassis. The engine is behind the cab as shown by the grills in the last photo ahead of the right side pump panel.