Interesting. Did the RoK Army get a chance to evaluate any first-hand?
No. There was no need to do so. Chrysler Defense was developing ROKIT and we were upgrading M48 by our own, so Sheridans(in large numbers) were almost useless.
Anyway, maybe it wasn't the first time for US to offer Sheridans to ROK. Our army was looking for replacement of phasing M113 in the mid 70s. M551 was planned for retirement at that time, so what we came up was to convert its chassis into personal carrier. This source
states that it was proposed by US in 1977, but I'm not sure whether this is related to those introduced in Hunnicutt's "Sheridan". The proposal was soon rejected because "equipments that have been phased out or ceased production always produce problems, so it's not a good idea in the long term". Army decided to license produce M113A1/A2 instead, then turned the direction into developing its own.
Edited by M48A5K, 11 November 2015 - 0138 AM.