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2004R
The 2004R transmission was introduced in 1980 for the 1981 model year.  It was used primarily with the Buick Grand National and the 1982 Chevy Corvette.  Many vehicles that are pumping out in excess of 700 horsepower are still using the 200-4R.

The external dimensions are similar to the Turbo 350 so it is often swapped in older vehicles to provide an overdrive gear.  In addition it has a multicase bellhousing for use with Chevrolet, Buick/Olds/Pontiac (BOP) and Cadillac powerplants.  The 2004R was phased out after 1990.

Gear ratios:

1234R
2.741.571.000.672.07


 
 Products (Total Items: 5)
2004R GM Stock Transmission
2004R GM Stock Transmission
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Your Price: $1,195.00
On sale: $1,095.00  
2004R Performance Transmission Stage 1
2004R Performance Transmission Stage 1
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Your Price: $1,395.00
On sale: $1,195.00  
2004R Performance Transmission Stage 2
2004R Performance Transmission Stage 2
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Your Price: $1,595.00
On sale: $1,395.00  
2004R Performance Transmission Stage 3
2004R Performance Transmission Stage 3
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Your Price: $2,095.00
On sale: $1,895.00  
2004R Performance Transmission Grand National
2004R Performance Transmission Grand National
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Your Price: $2,495.00
On sale: $2,195.00