Yeah I'm probably getting screwed a bit. His reasoning for the expense..."he has to lift the chassis to replace the lines and its a lot of work."
Anyway, the towing fee to the nearest dealer would be in the $150-$200 range so that would eat up the difference/savings.
JAD, about 6 mos. ago I replaced an entire left rear brake line on a 99 ML, and from start to finish it took approx 1 hr. 15 mins.
There was no raising of the chassis necessary. You are being fed a "cock and bull story" to drive up the price.
Your problem now is that your truck is at a repair shop and you do not know what to do.
1. Do you know what part of the line the leak is coming from>
2. Did you actually see it?
3. Did the mechanic show you?
4. Is the entire line rusted?
Explain things in detail.