In the most recent Revision of the Boeing FCOM these are the weights
B737-700
Maximum Taxi Weight 133,500 Ibs / 60,554 KG
Maximum Takeoff Weight 133,000 Ibs/ 60,327 KG
Maximum Landing Weight 128,000 / 58,059
Maximum Zero Fuel Weight 120,500 / 54,657
B738
Maximum Taxi Weight 156,000 / 70,760
Maximum Takeoff Weight 155,500 / 70,533
Maximum Landing Weight 144,000 / 65,317
Maximum Zero Fuel Weight 136,000 / 61,688