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Username Post: 200-4R code breaking        (Topic#115866)
56nomaduk 
Member
Posts: 42

Loc: Staffordshire, UK
Reg: 08-23-05
11-02-05 09:17 AM - Post#808247    

Hi, UK calling.

I've been offered, sight unseen, a 200-4R that has the code 096871CTF0588 on the tag to go behind my mild 350 sbc. I've scoured the Internet and have also checked the code out on http://members.aol.com/powerrslid/thm2004r.html (which appears to be the oracle!!) but something does not add up from what I can see. Firstly, there are 13 digits which suggests a transmission from 1982-85. But CTF (namely the addition of 'F' to the two letter code) suggests this is a 1986-90 transmission. But 1986-90 had 15 digit codes. The two numbers before the two or three letter code usually denotes the model year. In my case it is '71'. 1971? I doubt it!!! There are other anomolies such as '8' for the Plant Shift! Incidentally, on the tag there is a CT in the top LH corner and an F in the top RH. Can anyone decipher my code? Or can anyone suggest another way of identifying this 'box?

Pulling my hair out,

Ian
56 Nomad, 350/350, 9" Trac-Loc, disks, 4 inches closer to the weeds.


 
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Rick_L 
Honored Member
Posts: 25463

Loc: Katy, Tx, USA
Reg: 07-06-00
Re: 200-4R code breaking
11-02-05 10:56 AM - Post#808248    
    In response to 56nomaduk

I'm not really sure I can help a lot here.

From the chart in your link, the desirable transmissions are the ones in bold type, from the turbo cars and Monte SS. Any of those are more desirable.

If it's not one of those, it's kind of generic. You don't say what the application is, but you can use one of the "lesser" transmissions with success by adding a big servo and a shift kit. You don't need a lot of beefed up internals until you get to a pretty high hp level.

 
rj_ly 
"6th Year" Gold Supporting Member & Tri-5 Calendar Creator
Posts: 17575
rj_ly
Loc: Southwestern OH
Reg: 11-15-02
Re: 200-4R code breaking
11-02-05 02:42 PM - Post#808249    
    In response to Rick_L

So what numbers code does the metric 200-4R O/D transmission have? Beats me and I have one in my '86 LS Monte?

57 Hrdtp(mine for 40 YEARS JULY 12)
57 210 4-dr Sdn(37 yrs Aug 12)
57 Hrdtp(32 yrs Jan 12)
57(windowed)S. Delivery(31 yrs Oct 12)
57 150 Wgn(24 yrs Mar 12)
57 210 2-dr Sdn(8 yrs Oct 12)


 
56nomaduk 
Member
Posts: 42

Loc: Staffordshire, UK
Reg: 08-23-05
Re: 200-4R code breaking
11-02-05 09:22 PM - Post#808250    
    In response to Rick_L

Rick

Knowing the original application is one of my problems as the 'box plus others were alledgedly bought as a job lot, history unknown. I've been told to avoid V6 transmissions like the plague (except for GN, Turbo Regal and the like, of course) and go for a V8 of as later year as possible to take advantage of GM's own upgrades in '86 or '87. This is why I need to decipher the code.

Not too familiar with beefing up autos, what will a bigger servo do?

Ian
56 Nomad, 350/350, 9" Trac-Loc, disks, 4 inches closer to the weeds.


 
Rick_L 
Honored Member
Posts: 25463

Loc: Katy, Tx, USA
Reg: 07-06-00
Re: 200-4R code breaking
11-03-05 03:00 AM - Post#808251    
    In response to 56nomaduk

You may be right on seeking a transmission from a V8 car, but actually there are few differences between the transmissions for V8 and V6 cars as far as I know, with the exception of those "high performance" applications already stated. But good info is hard to find, except for the Turbo Buick transmissions. Later years are better.

The bigger servo will firm up and speed up the 1-2 shift. The "high performance" units have one. They are available in the aftermarket from a couple of sources.

I have an "unknown" 200-4R in my Nova, with a shift kit in it. The tag was gone when I bought it. It operates to my satisfaction, except for the 1-2 shift. I've purchased a big servo for it and will install it when I get a chance. WOT shift points are a bit low too, but you can shift it manually. It's not a real high hp deal though.

 
brimax57 
Contributor
Posts: 162

Loc: Lisle, IL
Reg: 03-30-03
Re: 200-4R code breaking
11-03-05 08:26 AM - Post#808252    
    In response to Rick_L

I have the 200-4r from my '87 Monte SS to use in my '57, and I can look at the numbers when I get home, but I know the letters are CZF, both large by themself on the yellow metal tag by the tail, and within the serial numbers.
'57 Chevy 150 4 door sedan
'81 Chevy Camaro Z28
'06 Pontiac GTO
'09 Chevy Silverado 1500
My 57 pics


 
56nomaduk 
Member
Posts: 42

Loc: Staffordshire, UK
Reg: 08-23-05
Re: 200-4R code breaking
11-03-05 09:42 AM - Post#808253    
    In response to Rick_L

Thanks Rick. All info offered is appreciated.

Ian
56 Nomad, 350/350, 9" Trac-Loc, disks, 4 inches closer to the weeds.


 
56nomaduk 
Member
Posts: 42

Loc: Staffordshire, UK
Reg: 08-23-05
Re: 200-4R code breaking
11-04-05 06:53 AM - Post#808254    
    In response to 56nomaduk

Brian
Thanks very much for your kind offer but you don't have to go to that much trouble 'cos I've cracked it (UK slang for, in this case, 'I have solved the problem').

All
With additional assistance from the www.turbobuick.com forum, PTSxtreme (www.ptsxtreme.com) and CK Performance (www.ckperformance.com) the code has been deciphered so:

- First 5 digits: The Julian Date, a sequential number from 1 to 365 representing the day of the year plus 2 digits representing the year. Hence the trans was built on the 96th day of 1987.
- Sixth Digit: The trans was built during the first shift meaning morning.
- Seventh to ninth digits (i.e. letters): Application code from which CTF appears to be a Canadian Caprice with federal emissions and a 305 engine.
- Last 4 digits should match the VIN of the car it came out of.

Simple really if you're in the know. And now you are! My next task is to find a readily available source of Application codes (the 3 letters). Why? 'Cos I want to, is all. But only after I've fitted my 'new' 200-4R.

Ian
56 Nomad, 350/350, 9" Trac-Loc, disks, 4 inches closer to the weeds.


 
rj_ly 
"6th Year" Gold Supporting Member & Tri-5 Calendar Creator
Posts: 17575
rj_ly
Loc: Southwestern OH
Reg: 11-15-02
Re: 200-4R code breaking
11-04-05 08:30 AM - Post#808255    
    In response to brimax57

I have the 200-4r from my '87 Monte SS to use in my '57,

Well since you pulled the transmission, I'll just stop by and take the body off your hands.
57 Hrdtp(mine for 40 YEARS JULY 12)
57 210 4-dr Sdn(37 yrs Aug 12)
57 Hrdtp(32 yrs Jan 12)
57(windowed)S. Delivery(31 yrs Oct 12)
57 150 Wgn(24 yrs Mar 12)
57 210 2-dr Sdn(8 yrs Oct 12)


 
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