I doubt the escort is any heavier than a 4x4 Saff, I don't know the reasons why the spring cup is higher?

The EScos had 8x16 wheels where as the 4x4 Saff had 7 x15? I think?

I'd hazard a guess at it being to do with fitting the wheels they had in mind with the 4x4 Sierra stuff in the escort wings?

I really don't know mate