landing leg won't extend

As I recall, Venture sells shear pins and replacement gear sets (bevel gears, thrust washers, etc.). Anything more is a leg replacement. The good news is a complete leg only costs something like $150. I have a friend who has "broken" a leg three times now (can you spell slow learner?). He paid repair places anywhere from $500 to $1,200 (stealer told him the legs only came in pairs - B.S.) to get them fixed. He *DID* get each of the broken legs back and we did an autopsy on them. All three legs had broken shear pins and nothing else wrong. He now has three spare legs awaiting his next brain f@rt. You can fix this problem for $0.50 and 1 hour of your time.