Looking at Upgrading to Disc Brakes but...

[WhatExit?]

Hope your New Year is off to a great start!

In doing research on upgrading to disc brakes one of the potential vendors sent me this info which I assume they found using my VIN:

Trailer has LCI suspension and Dexter axles not Morryde and the axle is 7,000 lb.
Suspension- 550061
Axle-651773

Anyone know anything about:
1. LCI suspension? And suspension # 550061 (Googled both and can't find info)
2. Axle 651773

Thanks in advance

My trailer is Keystone Montana 3120RL (2021)