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Automatic Transmission Dimensions & Measurements

transmission-dimensions.gif

 

Powerglide (bellhousing pattern - Chevrolet, Fit-all)

 

Style A B C D E
short shaft 25 23/64 20 9/16 16 5/16 3 ¾ 19
long shaft 27 9/16 20 9/16 16 5/16 3 ¾ 19

 

 

 

 

 

 TH350 (bellhousing pattern - Chevrolet, BOP, Fit-All)

 

Style A B C D E
6" tailshaft 27 11/16 21 5/8 20 3/8 3 ¾ 19 1/8
9" tailshaft 30 11/16 21 5/8 20 3/8 3 ¾ 19 1/8
12" tailshaft 33 27/32 21 5/8 20 3/8 3 ¾ 19 1/8

 

 

 

 

 

 TH400 (bellhousing pattern - Chevrolet, BOP)

 

Style A B C D E
C tailshaft 28 3/8 24 5/16 26 15/16 4 ¼ 20
D tailshaft 33 27/32 24 5/16 27 15/16 4 ¼ 20
13" tailshaft 37 7/8 24 5/16 27 21/32 1 ¾ 20

 

 

 

 

 

 2004R (bellhousing pattern - BOP, Fit-All)

 

Style A B C D E
All 27 11/16 integral tailhousing 27 3 ¾ 19 1/8

 

 

 

 

 

 700R4 4L60 (4L60E 1993-1995) (bellhousing pattern - Chevrolet)

 

Style A B C D E
All except Corvette 30 ¾ 23 3/8 22 ½ 3 ¾ 20
Corvette (1982-1996) 29 7/8 23 3/8 22 ½ 3 ¾ 20

 

 

 

 

 

 4L60E/4L65E 1996-Later (bellhousing pattern - Chevrolet/removable)

 

Style A B C D E
All except Corvette & LS1 30 ¾ 21 ¾ 23 3/16 3 ¾ 18 ¼
LS1-style (1998-later) 31 5/32 21 ¾ 23 19/32 3 ¾ 18 ¼

 

 

 

 

 

 4L80E/4L85E 1991-Later (bellhousing pattern - Chevrolet)

 

Style A B C D E
Std. 2wd 32 11/16 26 30 3/8 4 ¼ 20
HD 2wd 31 15/16 26 30 3/8 4 ¼ 20
HD long 33 26 30 3/8 4 ¼ 20
4 X 4 29 26 30 3/8 N/A 20

 

 

 

 

 

 C4 (bellhousing pattern (removable) - 4 Cylinder, Small Block, Big Block)

 

Style A B C D E
Pan Fill 24 5/16 16 ¾ 19 ½ 5 9/16 N/A
Case Fill  30 19/32  18 1/8  20 ½ 5 9/16 N/A
CF w/ PF conv.       5 9/16 N/A

 

 

 

 

 

 C6 (bellhousing pattern - FE Big Block, Big Block, Small Block)

 

Style A B C D E
FE Big Block 33 ½ 20 22 3/8 5 ½  
Big Block 33 ½ 20 22 3/8 5 ½  
Small Block 33 ½ 20 22 3/8 5 ½  

 

 

 

 

 

 AOD (bellhousing pattern - Small Block)

 

Style A B C D E
Small Block 30 3/8 20 3/16 22 5/16 5 5/16 19 9/16

 

 

 

 

 

 AODE/4R70W (bellhousing pattern - Small Block, Modular)

 

Style A B C D E
Small Block 31 3/16 21 23 5/16 5 5/16 19 3/8

 

 

 

 A-727/37RH

 

Style A B C D E
Small Block 34 3/8 16 23 ¾ 2 ¾ 18
Big Block 34 ½ 16 22 ¾ 2 ¾ 18 13/16

 

 

 

 A-904/32RH

 

Style A B C D E
Small Block 30 ¾ 14 23 2 3/16 17 7/8

 

 

 

 A-518/46RH/47RH/47RE

 

Style A B C D E
Small Block   16     16 5/16

 

 

 

 A-500/42RH/42RE

 

Style A B C D E
Small Block 37 15 7/8 24 ½ 3 5/8 18 1/8