200r4 transmission

[80lemans]

Anybody in need of a 2004R, drop me a PM. Got one out of a 442 with the good servos like the GN. Have dip stick, TV, dust cover and converter as well.

 

[64nailhead]

Anybody in need of a 2004R, drop me a PM. Got one out of a 442 with the good servos like the GN. Have dip stick, TV, dust cover and converter as well.

What's the code on the tag?

 

[81cutlass]

I have a home made lockup circuit using a pressure switch in the 4th gear valve body, brake switch and vacuum switch.

Problem on my turbo setup is that it surges because the engine builds a little boost when the load goes up due to the converter locking and then looses vacuum and shuts off, which then drops boost, builds vacuum and locks up.

I put a delay in for 10 seconds and it helped. Fyi-

 

[80lemans]

What's the code on the tag?

I will have to take a look at it. Where would it be located?

 

[scoti]

Curious on the 'tags' code info. For those that already know, how many variations are there?

 

[oldsmobile joe]

there's a rectangular plate on the passenger side, opposite of the speed o drive. in your pic of the trans and converter in the wagon, its behind the converter. it will look something like this.

 

[oldsmobile joe]

Curious on the 'tags' code info. For those that already know, how many variations are there?

THM 200-4R Application Chart​

This chart shows all the information I could find on the various 200-4R calibrations.​

Hopefully it will help those looking for good used transmissions/cores or B/D/G-Body owners that had their 200-4R replaced with a wrecking yard unit & fall under the "All 200-4R's are the same Joe, it'll fit" syndrome {my 85 Monte Carlo SS had a code "3OG" trans when I bought it}.

1982​	1983	1984	1985	1986	1987	1988	1989	1990	APPLICATION
9AA​	3AA​	4AA​	5AA​	6AA​					Cadillac w/o E.C.S.​
			5AB​	5AC​					UNKNOWN​
9AP​	3AP​	4AP​	5AP​	6AP​					Cadillac with E.C.S.​
	3BR​	4BQ​	5BQ​	6BR​	7BR​				Regal Type-T/GN/GNX​
		4BT​							B/D 4.1 V-6​
	3BY​	4BY​							4.1 V-6​
				6CA​					Pontiac G/P & 2+2 305 H V-8​
					7CC​	8CC​			305 H​
	4CH​	5CH​			7CY​	8CY​			4.3 V-6​
					7CH​	8CH​			4.3 V-6​
			5CY​	6CH​					Pontiac Gran Prix 3.8 V-6​
					7CT​	8CT​	9CT​	0CT​	UNKNOWN​
					7CU​	8CU​	9CU​	0CU​	UNKNOWN​
		4CQ​	5CQ​	6CZ​	7CZ​	8CZ​			Monte Carlo SS 305 G 3.73​
9CR​		4CR​							307 Y V-8​
			5CR​	6CR​	7CR​				305 H V-8​
				6HC​					UNKNOWN​
					7HD​				UNKNOWN​
9HE​		3HE​	4HE​	5HE​					UNKNOWN​
					7HF​				UNKNOWN​
9HG​			4HG​	5HG​					UNKNOWN​
					7HT​				UNKNOWN​
				6KB​					Olds Cutlass 307 Y​
								0KD​	UNKNOWN​
				6KJ​	7KJ​	8KJ​	9KJ​	0KJ​	307 Y 3.08/3.23​
					7KT​	8KT​	9KT​	0KT​	307 Y 2.93​
9OG​		3OG​	4OG​	5OG​	6KC​	7KC​			B/D 307 Y 2.73​
		4OJ​	5OJ​						307 Y V-8​
9OM​	3OM​	4OM​	5OM​						B/D/G DIESEL V-8​
	3OZ​	4OZ​	5OZ​	6KZ​	7KZ​				Hurst Olds/Cutlass 442 3.73​
							9TA​		Pontiac Turbo Trans-Am​

DECIPHERING THE CHART CODES:​

The transmission application tag is located on the passenger side rear of the transmission on the case just above & forward of the trans mount.

1982-1985 transmissions use a two letter code on the tag & 1986-1990 transmissions use a three letter code with an "F" at the end of the code {there may be other letters but all the 86-90 transmissions I've checked have an "F"}.

1982-85 transmissions use a 13 digit numbering system to show what it is & when it was built. These numbers are on the bottom of the transmission tag below the letter code {EXAMPLE: 123 2T85CQ1234}. The first three digits are the Julian date {the date the transmission was built, julian date is the start of trans production so 001 would not be january 1st. The 4th digit is the Plant Shift the transmission was built {1=1st shift; 2=2nd shift; 3=3rd shift}. The 5th digit may be a letter or number & is the code for the Hydramatic plant that the trans was built at. The 6th & 7th digits are the model year of the vehicle the trans was originally installed in. The 8th and 9th digits are the two letter code of the transmission & denotes internal parts & valve body calibration of the unit. The 10th through 13th digits is the serial number of the unit.

1986-1990 transmissions use a 15 digit numbering system {EXAMPLE: 9 123 2T86CZF 1234}. The 1st digit is the Calender year the unit was built. The 2nd,3rd, & 4th digits are the Julian Date {see above}. The 5th digit is the Plant Shift the trans was built. The 6th digit is the Hydramatic plant the trans was built at. The 7th & 8th digits are the model year of the vehicle the trans was installed in. The 9th & 10th digits are the two letter code of the transmission & denotes internal parts & valve body calibration of the unit. The 11th digit is the letter "F". This denotes that the trans is a 200-4R {GM decided to add a third letter to the code that will show what transmission family it is, 200C = "B", 200-4R = "F", 700-R4 = "M", etc...}. The last 4 numbers are the serial number of the unit.

​

 

[ELCAM]

Nice list. Will add the Cadillac transmissions I have used shifted at much lower speeds and very gently. Not ideal for high performance without some serious modification.

 

[83MonteCarloSS]

there's a rectangular plate on the passenger side, opposite of the speed o drive. in your pic of the trans and converter in the wagon, its behind the converter. it will look something like this.

That's a nice lookin tag you have there. 😜

 

[oldsmobile joe]

That's a nice lookin tag you have there. 😜

not mine. copied it from some google search. amazing what what you find when you look.