Discussion in 'The "Juice Box"' started by Quick Buick, Oct 28, 2018.
Price was cheap..But I never saw a tag like this.. Any idea's.
Its from a monte carlo, 305, (Obviously an 87)
has a low rpm governor ,
low rpm 4500- 4700 rpm,
but that can be corrected,
here are some of the tag codes
KZF -- Olds 442/Hurst
CZF -- 85-88 Monte SS
CRF -- 85-88 LG4 305 powered Monte Carlos/Pontiac Grand Prix
BRF -- 86-87 GN/T-Type/Turbo Regals
BQ -- 84-85 GN/T-Type/Turbo Regals
BR -- 83 Model T-Types
TAF -- 89 Turbo Trans Am
OZ -- Hurst Olds
OM -- Olds 350 Diesels
OG -- lds 307
BY -- V-6 252 Cars
AA and AP -- Cadillac's
Ok CRF 305 MC/GP understood.. But only to a point 305 Plane Jane.MC came with TH350 3 speed trans. not 4R's.... SS MC came with 200R4's
The hand punched numbers. Ive never saw that.. Should be a build number..
Below internet photo
Not sure where you got the info that Monte Carlo SSs didnt come with 2004Rs - because thats just not true. Maybe the first couple years they didnt though - but 86 and up I believe they all had 200-4Rs. A quick google search will answer that for sure.
The tag on the 200-4R I had in my '55 Chevy looks like the one you posted from the Internet - the one you posted from your trans is definitely different in how the code is stamped - with a date and all that.
I'll re word it a bit....... The SS MC had 200R4's. The plane Jane MC's did not...
Found this on the Chevelles.com.. Wrote By Jakeshoe owner of a trans shop..
I would probably go for the Monte SS. Look and see if it's a CQ code. Tag on right rear of trans.
It will also likely have a 10 tooth speedo drive gear, so saves you some coin later to get the speedo going correctly. That's a $50 gear.
The T-type trans may have a BQ or BR code trans. Worth grabbing, but the CQ or CZ code valve body is better.
I would suggest you buy two, as you will likely need two to make one good one with the core age, mileage, etc.
The newer models had some upgrades but nothing you won't be doing during the rebuild anyway.
Other good codes are KCF and CRF.
The 200-4R is far and away a better unit for retrofit than a 700.
If you build transmissions long enough, you'll find that you can do everything perfect and repeatably, and still have pressure problems. That's on any unit. Even a RMVB TH400 which is as simple as it gets can do weird stuff and have you pulling your hair out.
The speedo gear thing mentioned previously is now an issue for all the older units. GM has discontinued them.
KCF isn't on the list above. I'll take Jakeshoe word on the CRF & KCF
Oh gotcha - reading comprehension isnt really my strong point apparently.
Stefhan me bad my keyboard skills (putting words on paper) are not the greatest.
Only reason I know about the plane Jane's a guy in my neighborhood plays with the Monty Carlos.
Weird thing only internet info I can find on the CRF is the list you copy&pasted % the one I P&C from the Chevelles.com forum..
I'm pretty sure 2004-R OD was an option on plain Monte's with the 305. I also once had an 86 Old Cutlass (not a 442) with 307 and 2004-R Overdrive. Also, the BRF is the most desirable valvebody. But the others can be modified to be good too. At least that's what I've been hearing for the last few decades!
Paste&Copy. Jakeshoe. I Guess he is the owner http://www.jakesperformance.com
Get a Caprice unit...
Code CRF, or a Olds 307 unit code KC. These work excellent (better than GN or MCSS) and don't command the high prices.
I have a KC valve body and NEW GM 200-4R cases.
Maybe I did good?
Yes, it is a decent one. That probably came out of a caprice with a 305. Could have even been a police pkg one but no real way to tell since you don't know where it came from.
Being an 87 it has the factory upgrades but it is pretty old so I'm Sure it could use an overhaul.
What are your plans for it?
With the date of 8-4-87 and the Above P&C from Jakeshoe. I was thinking cop car also..
Its got a No Yo Yo guppy reverse fix plate on it, By Transgo.
I'll get it fixed up and install it.
For what its worth I got it CL deal came out of a 87 MC no clue if it's real a SS like seller stated.
It was in the trunk of it. So I did get it out of a MC...
If it was an MCSS unit it would have a CZ code(CQ for the earlier yrs) as it is an 87 unit.
Since it is out, I would pull the pump and put a set of rings in it, a sonnax slide spring(put the stock inner one back in the sonnax when swapping), a larger boost valve(.500), Rev/Boost valve(.283) and 700r4 spring(blue or pink depending on what you can find), and do the Bison pressure mod as per attached pic. It is a washer between the pin and spring to prevent the pin from wearing through the spring resulting in low system pressure.
Be sure to inspect that stator support for worn splines. This is the time to swap in a new one if needed, too. I was told to use regular hex bolts instead of the button head allen type installed from the factory.
If you are feeling like going deeper I have some more suggestions.
It's a 200-4R....quit calling them 200-R4--NOT!!
Thank You LOVE it
Ok I get the name wrong. Give me a small brake LOL...I'll get it straight one day who know when... This is my first automatic transmission car that I've owned since 83..
4R/ R4, we all get the drift, ,
its like the punctuation police, LOL
I'm guilty of calling it a 200r4, lesson learned.
(as a side note, I have 5 - 2004r's in my garage ) (and only 3 cars)
I worked at a Chevy dealer in 84 and bought an 84 Monte SS (TH350C). The 83 Monte SS was TH350C only. The 84 SS you could get the TH350C with 3.43 rear gear or the TH2004R with 3.73 rear gear. I believe all Mont SS 85-88 were 2004R.