I'm considering replacing the rear shocks on my 26' coach. The reason I'm thinking about this is that when I hit a bump in the road the coach has a hard bang and shutter. Being winter and not having a garage I won't be doing this until the warmer weather is upon us. I've researched a bit and have found KYB KG 5436, which are reasonably priced at $31.89 on amazon. Is there anything I should be checking on before I endeavor on these replacements.