GMC RTS II
The GMC RTS came along in 1980, and the buses were well ahead of their time... They were not without a few issues, however, but as a rule, were liked.
These buses are a hit with RV convertors as well, and I personally like the look. A lot of drivers didnt like the wedge type brakes and the fact that you sat high up. Others complained that they "squeeked" a lot.
The buses were equipped with a Detroit Diesel 8V-71 and a 3 speed Allison Transmission.
Lets look at a few...

This is a 35' example running through Oakland by PITT. 1401 is the coach number.

RTS 1409 is coming out of the Mt. Washington Transit Tunnel, on the South Hills Junction side.

Collier RTS 1413 leaving Smithfield St, crossing over Ft. Pitt Blvd.

1423 on the 56C McKeesport Route. Location unknown.

1430 Coming toward 3 Rivers Stadium, before a ball game.

1442 on the 89A Route.

1442 sitting at the Harmar Division, preparing for its next trip.

1410 and 2819 on layover at South Hills Junction.

1442 near East Liberty garage.

2827 when delivered in front of Manchester Shops.

2829 on Fifth Ave in Oakland, near Craft Ave.

2840 on Wood St, Near 5th Ave.

RTS 2844 pulling out of East Liberty Garage.

2851 on Forbes Ave, near the Armstrong Tunnel.

2853 on Bigelow Blvd, nearing Forbes Ave in Oakland.

2855 on Penn Ave in East Liberty.

2856 turning from Liberty onto 6th Ave.
More to Come...