and the bigger the ram the weakest is the pull .

your cylinder force ratio if 5 inches bore
is about 19.63 : 1 @ 2000 psi...19.63 tons pushing

if ram is 2.5 inches , substract ram surface = 14.72 :1 @ 2000 psi...14.72 t.pulling

(3.1416 x radius square x psi)

if unable to straighten you could also gouge it to about 1/2, straighten it and
re-weld it, then put reinforcements in the back.

good luck.