oh dear, rather a difference - tell you what I'll get 20 and if its only 8 I'll post the rest down!!! If I remember rightly i had it done 3 years ago and it cost £98 at a garage - don;t think it would have been that for 8!
I have to admit to having zero faith in truck mechanics any more - its fine if its electronic but in our part of the world there are very few experienced mechanical mechanics if that makes sense!! thats why its a tractor mechanic that now does mine - can fix things rather than just fit new parts - much cheaper too!! oops sorry mini rant!!