Here's some good info from this thread:
http://67-72chevytrucks.com/vboard/s...00#post4177700
Front Shocks
Doetsch Tech Shocks*
DT4809G 1960-62 front Doetsch Tech Shock stock height
DTM1200GLL 1960-62 front Doetsch Tech Shock lower height
DT4052G 1963-72 front Doetsch Tech Shock stock height
DT4809G 1963-72 front Doetsch Tech Shock 1"-2" lowered
DTM1200GLL 1963-72 front Doetsch Tech Shock 3" lowered
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KYB Shocks KYB
KYM1200G 1960-62 front lowered KYB Shock, 2"
KY4809G 1960-62 front stock KYB Shock
KY4809G 1963-72 front lowered KYB Shock, 1"-2"
KYM1200G 1963-72 front lowered KYB Shock, 3"
KY4052G 1963-72 front stock KYB Shock*
Rear Shocks
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KYB Shocks KYB
KY4163G 1963-72 w/ rear leaf stock or 1" - 2" drop
KY4095 1963-72 w/ rear leaf or 2" - 4" drop
KY4052G 1963-72 w/ rear leaf or 5" drop
KY4163G 1960-62 rear lowered*
KY4231G 1960-62 rear stock
KY4095 1963-72 rear lowered 2"-4"
KY4052G 1963-72 rear lowered 5-1/2"
KY4163G 1963-72 rear stock