I've got a 2000 Subaru Legacy with some KYB Excel-G shock absorbers I'm trying to put on the rear axle. After replacing the front struts, I figured the rear shocks would be a piece of cake. WRONG. The nut on the big bolt going through the lower eye hole of the shocks is as solid as any bolt I've ever had to crack.
A local shop will do it for $150 but it's a point of pride for me to do it myself. Plus I already shelled out $60 for the spring compressor tool.
I have not yet used a rattle gun or breaker bar on it yet because I'm trying to avoid removing the rear caliper, rotor, and backing plate which would be necessary to gain full access. Instead I'm using a box wrench and a 5lb sledge to attack the nut. 100+ impacts and it will not budge. I've tried soaking it in PB B'laster for 24 hours, with some extra right before an attempt. I've also heated it up with a propane torch for a good 60 seconds. No effect.
I see two options:
1) Bust out the oxy-acetyline torch and get it glowing red before making another try. The gas tank being nearby makes me a little nervous to try this, but I guess there's not much real risk involved if done right.
2) Give up and remove the rotor components to allow for rattle gun and breaker bar attacks.
It's possible both approaches will be necessary. Does anyone with experience have any suggestion on how to proceed? Should I plan on having to replace the bolts? All advice is much appreciated.