I bought a nice sliding window recently at Bristol volksfest was a bit of a bargain along with a few other bits, however after taking it apart and giving it a good clean, I have taken out my old glass and upon trying to fit the sliding window I have offered it up and found that despite being told it was from a van with factory fitted windows, like mine is, it isn't long enough :/
I have looked up the reg number that is etched onto the glass and it says it belonged to a blue t25 but why doesn't it fit mine? And what does it fit as there is nowhere else on my van that I could fit it.

