What is the difference between the Von Duprin standard baseplate return spring package 090039 and the LBR (less bottom rod) baseplate return spring package 090088?

Current baseplate spring 090039

• Used with 2227/27-F, 33/3527A/27A-F, 98/9927/27-F (Standard and LBR)
• May be used for all standard and LBR devices produced after 1995
• Was redesigned in 1995 to be used with the new riveted baseplate design
• Design allows the end of the spring to nest inside the action rod end
• Is distinguished as silver, 1.75” free length, plus 3 smaller coils at each end

Old LBR baseplate spring 090088

• Only for Von Duprin 2227/27-F, 33/3527/27-F, and 98/9927/27-F LBR (less bottom rod) devices shipped prior to 1995
• Older devices (prior to 1995) work are to use that spring if converting to LBR.  
• NOT to be used with any devices (Standard or LBR ) shipped after 1995. It will not properly seat into the hole in the action rod.  It can and will pop out eventually.
• Is distinguished by red color and barrel shape, with about 2 3/8” free length