The barrel is in the clutch lever. Mine also broke at about 5000 miles. I took a dremel tool and relieved the sharp edge on the barrel and use a good teflon grease. I have 60,000 on this cable still going strong. knock on wood.
After my last clutch cable which snapped at the pin, I filed down lip on the barrel and the groove which the cable goes through just in case vibes was adding to it. Been 1000+ miles and zero signs of wear through the teflon casing. Using Moly B for lube on cable end only.
2011 White Vision - Nuvi 550, Lowers, Lloydz 2nd filter, Vic perf filter, CB/Icom, 96 Brake LED's, Clear Signal lens/Switchbacks, VIC Hwy Pegs, Stebel Horn, 7Jurock 15" Shield, PCV, Lloyd ATS and Variable intake, Ness honkers
2004 V92 TC - S1 flash, level 1 slip-on, Ness big sucker K&N, ISO Grips, 4x1.5 Highway Hawg Risers, extra chrome (never too much), JM 2k CB 4' antena, Mustang seat, HD Front TS & Lowers, OD Pulley
Retired Navy SCPO