If it is feasible I would fit the second more comman type the one on yours has a doughnut coupling which being rubber does deteriate quicker and can give way and when replaced should come with a steel clamp around them so you can fit them, without the clamp they spread and are swines to fit you then remove the clamp once fitted as mentioned before some Fords and Bedford TK's had them nasty things I hope the other one fits mate they are a lot more positive.