Backyard Discovery 1905016B Owner's Manual & Assembly Instructions page 56

STEP 25
(1) SPEEDY SLIDE B-L (4 PCS) - NARROW
2 5/8 in
[67 mm]
DRILLING PATTERN
BOLT WH 5/16x1/2
(2 PLCS)
T-NUT 5/16
(2 PLCS)
CENTER SLIDE AND
ALIGN TO DIMENSION.
DRILL 7/16" (11mm) HOLES
AND INSTALL HARDWARE
56
BOLT WH
(2)
5/16x1/2
(2)
T-NUT 5/16