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  #1 (permalink)  
Old September 6th, 2008, 05:13 PM
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Is there a difference in the cases of a 2004r lock up and nonlock up?
Hey, My trans case is srored from the band piston failure. I need a new case. Is there a difference in the case from lock up and non lock up? Are they both still called 2004r. Thanks, Steve
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Old September 6th, 2008, 05:20 PM
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All 2004r transmissions were lock up from the factory and even when they are converted to non lock up the case is not modified.You arent talking about a 200 3 speed are you?If so there is a lock up and non lock up unit.The non lockers had a vent on the extension housing area.
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Old September 6th, 2008, 05:30 PM
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Some one today said they had a bop 2004r but then said it was a three speed. So I was not sure if I should buy it .
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Old September 6th, 2008, 05:52 PM
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There is a bop only 2004r case and a chevy bop comdo case.Either way if your engine is bop itll fit.
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Old September 7th, 2008, 02:06 AM
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Thanks chris. Do you know what the difference is in a brf case. If my internals are from a non brf can they be used in a brf???
Last edited by myname7890 : September 7th, 2008 at 02:06 AM. Reason: spelling
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Old September 9th, 2008, 09:47 PM
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Quote:
Originally Posted by chris718 View Post
There is a bop only 2004r case and a chevy bop comdo case.Either way if your engine is bop itll fit.
Hhhmm thought all 200-4R's were Chevy/Buick/Olds/Pontiac? No? What about the BRF 200-4R trannies our TR's came with? Do they have a Chevy bolt pattern also?
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Build a car to go 11's and detune it to run 12's and you don't have to worry about parts breakage. Build it for 11's and try to push it into the 10's and all bets are off. Of course trying to run a number is fine if that is what you want to do but beware if you walk on the edge sometimes you fall off.
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Old September 10th, 2008, 12:12 AM
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BOP/Buick/Olds/Pontiac Housing & Unibell/Chevy/BOP Housing>
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Old September 10th, 2008, 06:17 AM
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So the unibell housing has the notch at the top of it?
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Quote:
Originally Posted by corsair231 View Post
Build a car to go 11's and detune it to run 12's and you don't have to worry about parts breakage. Build it for 11's and try to push it into the 10's and all bets are off. Of course trying to run a number is fine if that is what you want to do but beware if you walk on the edge sometimes you fall off.
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Old September 10th, 2008, 07:28 AM
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Pic on left is BOP housing/case with 6 mounting holes & 2 dowel holes.
Pic on right is Unibell BOP & Chevy housing/case with 10 mounting bolt holes & 2 dowel holes.
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Old September 10th, 2008, 04:51 PM
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Thanks. Were there any cars besides a Monte/Malibu/Elky that came with the multi bell 200-4R?
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Quote:
Originally Posted by corsair231 View Post
Build a car to go 11's and detune it to run 12's and you don't have to worry about parts breakage. Build it for 11's and try to push it into the 10's and all bets are off. Of course trying to run a number is fine if that is what you want to do but beware if you walk on the edge sometimes you fall off.
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Old September 11th, 2008, 07:12 AM
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Most all 2004R's I've seen have the Uni-Bell case. Some early 80's had BOP only. Saw a Pic a while back of an early 80's Chevy only case but can't find it now.
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Old September 14th, 2008, 06:37 PM
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Ok, just wondering if my BRF tranny has it or not....haven't checked, just figured they were all unibell up until now.
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Quote:
Originally Posted by corsair231 View Post
Build a car to go 11's and detune it to run 12's and you don't have to worry about parts breakage. Build it for 11's and try to push it into the 10's and all bets are off. Of course trying to run a number is fine if that is what you want to do but beware if you walk on the edge sometimes you fall off.
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