In order to determine the correct landing gear for your 2009 Keystone Laredo 245RL, you're going to need to measure the distance between the two weld stops, like illustrated in the diagram attached.
From here, you can choose a replacement that will give you the correct amount of lift, and weight capacity needed.
For example, the Lippert Electric Landing Gear Set # LC333964 has the standard 17-1/2" from the weld stops, 34-7/8" of lift, and a 6,500-lbs capacity. view full answer...
If your 2008 Keystone Laredo has a landing gear set that is the brand Venture, Lippert, Power Gear, or LCI this # LC142178 is most likely a fit but without knowing for sure what brand landing gear you have it's hard to say. The likelihood of it being the correct motor is very high though as this is a very popular setup. view full answer...
The Lippert Components RV Spare Tire Carrier with Winch - 71" Overall Width # LC159041 will use the Replacement Crank Handle for Lippert Components Manual Scissor Jack # LC285324. The Replacement Crank Extension for Lippert Components Spare Tire Winch Assemblies - 35-1/2" # LC1315411.
The extension is to remain attached you can use a pin or even weld it in place. The 71 inch extension will require a mount to hold the extension in place at the frame to support the opposite end of the extension.... view full answer...