Hello all. I'm trying to rip the "new" rubber brake lines to the caliper someone put on my rusty parts car , an 80 300CD and put em on my 81. That 11 mm bolt on the metal brake line keeps striping on me. I got one brake line off the parts car. I'm a little scared to try to replace them on the car i drive for this reason. However they are a little cracked and old so i thought i may give it a go. Anyone have any tips on replacing brake lines that are stuck real good ?

Also, i'm thinking of grinding them off the parts car unless brake fluid is flammable. any better ideas?

thanks

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What Would Rudolph Do?
1975 300D, 1975 240D, 1985 300SD, 1997 300D, 2005 E320 , 2006 Toyota Prius