I'm having trouble finding new rear liftgate supports for my 2002 Isuzu Axiom XS. Can anyone help locate somewhere to buy a pair?

 

Look on Amazon. Tuff makes a pair to fit, but the reviews are so-so. I'm looking for a longer pair with same mounts and pressure but a couple of inches longer. Low clearance means I'm constantly banging my head on the liftgate and I'm only 6' 1". My wife hits her head and she's only 5' 5". Talk about poor designs... were the Axiom designers dwarfs?