[Tnchi2a]

There are quite a few problems with this write-up.
1. the LAV-25 is only used by the U.S. Marine Corps.
2. the first Stingray prototype was produced in August 1984, and the first production models where made in 1988-1990 only for Thailand.
3. as noted above the U.S. Army use 155mm Howitzers only
(105mm guns were only used on early cold war tanks after WWII)
4. A U.S Armored Cavalry Squadron After 1982 is made up of
Tanks: M1s And/or M1A1s Depending on year
CFV: M113 ACAV till 1984 or M3A1s 1985+
all of which would be available in the states NG weapons depots at the time.
now that early (1984) you may find some of the older M60A4s in the mix
with reactive armor up-grades.
A typical 1984 Armored Cavalry Regiment OOB would be:

1st Squadron
1 x Headquarters Troop (M577A3)
1 x Troop of 4 x M1s And/or M1A1s /M60A4s
1 x Troop of 4 x M113 ACAVs
1 x Troop of 4 x M113 ACAVs
1 x Troop of 4 x M113 ACAVs

2nd Squadron
1 x Headquarters Troop (M577A3)
1 x Troop of 4 x M1s And/or M1A1s /M60A4s
1 x Troop of 4 x M113 ACAVs
1 x Troop of 4 x M113 ACAVs
1 x Troop of 4 x M113 ACAVs

3rd Squadron
1 x Headquarters Troop (M577A3)
1 x Troop of 4 x M1s And/or M1A1s /M60A4s
1 x Troop of 4 x M113 ACAVs
1 x Troop of 4 x M113 ACAVs
1 x Troop of 4 x M113 ACAVs

4th Squadron
1 x Headquarters Troop (M577A3)
1 x Troop of 4 x M1s And/or M1A1s /M60A4s
1 x Troop of 4 x M113 ACAVs
1 x Troop of 4 x M113 ACAVs
1 x Troop of 4 x M113 ACAVs

1st Field Artillery Battalion (Mech)
1x platoon of 8x M109A6 ,8x M992 FAASV's, 1x M981 Fire Support Team Vehicle (FISTV), 1x Humvee (command)
1x platoon of 8x M109A6 ,8x M992 FAASV's, 1x M981 Fire Support Team Vehicle (FISTV), 1x Humvee (command)
1x platoon of 8x M109A6 ,8x M992 FAASV's, 1x M981 Fire Support Team Vehicle (FISTV), 1x Humvee (command)

The ACAVs are used for scouting so you would not have a recon Troop
and Air Cavalry Troop (Helicopters) and Towed Howitzers Support is at the Division level and would not be attached to the Squadron Or Regiment