I saw that too. My fear is those don't have enough stroke to match the original, so you're probably losing some angle one way or another. To be fair, I don't know if the original goes fully both ways, but
I bought a yellow 54" with the original setup and plan to test that theory soon.
OP, the internet (this site too) claims this is the closest cylinder you can buy.
FYI, link is dead, here's a new one.
https://surpluscenter.com/1-5x8x-75-da-hyd-cyl/
Specs are 1.5x8x.75 Double Acting Hydraulic Cylinder [900686]
Product Description
1.5" x 8" x 0.75" DOUBLE-ACTING HYDRAULIC CYLINDER
Brand new. Welded cylinder with internal gland retainer. For agricultural and industrial applications. Small sizes are ideal for remote control of valves, spouts, etc.
SPECIFICATIONS
Brand Columbus Hydraulics
Model Number LD-1.500-1646
Double Acting
Bore x Stroke 1.5" x 8"
Pressure 2000 PSI max.
Rod Dia. 0.75"
Column Load Unknown
Ports 3/8" NPT
Retracted Length 13.5"
Shpg. 10 lbs.
END MOUNTINGS
Rod End Cross-Tube
O.D. 1.26"
Width 1.25"
Pin Hole 0.75"
Base End Cross-Tube
O.D. 1.26"
Width 2"
Pin Hole 0.75"
https://www.onlycubcadets.net/forum/...886#post539886