Ive always been curious about these trailers

So this week I was coming home from work and I was at a red light and there was somebody driving a fully restored Burlington Northern Maintenance of Way truck. For all of you who don't know, Burlington Northern is the BN part of BNSF BNSF was formed out of a merger between Burlington Northern and Santa Fe in 1996. Long story short Santa Fe went to Burlington Northern and said hey could you like buy us out because we are having a lot of trouble here competing with Union Pacific who at the time had just bought out Southern Pacific and Chicago and Northwestern. Burlington Northern wasn't having as much trouble, but they too were starting to feeling the pinch because Union Pacific was putting the heat on the smaller Class 1 western railroads and it was a good fit because BN and Santa Fe were both western railroads but BN was the north west and Santa Fe was the south west so they didn't really have a lot of over lapping track and Santa Fe mostly hauled fast freight intermodal trains while BN did a lot of coal and grain and forestry products so they had a good customer base and it was a good fit for the two companies.

Anyhow fast forward 26 years and someone in Lorain, Ohio is driving around in a restored Burlington Northern Maintenance of way truck down Colorado Ave:

That's what the truck looked like at 0200 in the morning and I thought, that's really pretty cool. So I went on the internet and was doing some research this week about BN and Santa Fe and the merger and I was watching some old videos of intermodal trains from 25-26 years ago and my how things have changed in someways.

The biggest change was the UPS feeder trailers:

I can remember in my lifetime the old school UPS Feeder trailers I'm thinking they went out of style around what 2003ish early 2000s sometime around there?
FedEx ground still has those like drop deck trailers, but UPS I think by now has phased and scrapped all of the drop deck trailers out? What was the reason for getting rid of them and what were they like inside?

It's interesting to see the older equipment sometimes, those trailers were around for a little while even into the early 2000s they still had them going.

 

I thought this one was a shorter one lol. At least it had a couple pictures ha-ha.

 

A lot of the 1980s and 1990s era intermodal trains had these like 45’ UPS trailers on them the 28’ were pretty much the same. It’s like they had an underbelly for more packages I guess. I’d be hard pressed to find a picture of the inside of one.

 

It’s interesting seeing old pictures and old equipment.