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350 to 400 trans swap

Started by Twinsilk, June 04, 2018, 02:28:38 PM

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Twinsilk

June 04, 2018, 02:28:38 PM
Plan to install a bbc and 400 trans. Car currently has 350 trans. Does the driveshaft need to be changed? If so, to what length?

Kelley W King

#1
June 04, 2018, 08:49:05 PM
I know the yoke is different but I think the shaft will work.
69 Z28 RS Scuncio Hi Performance
69 SS L78
67 SS Chevelle
64 Corvette
66 GTO Tiger Gold
77 Trans Am Special Edition

z28z11

#2
June 04, 2018, 10:18:02 PM
400 trans is longer - plus the different yoke.

Regards,
Steve
1968 Z28 M21/U17 BRG/W 1967 Chevy ll Nova SS 
1969 Z28 X77/M20/VE3 LeMans/W
1969 L78 X66/N66 Cortez/BVT
1969 Z11 L48/M35/C60/C06  1949 3100 5wd 235/6

Mike S

#3
June 04, 2018, 10:38:43 PM
 Is the cross member for a TH400 the same as the TH350?

Mike
67 04B LOS SS/RS L35 Hardtop - Original w/UOIT
67 05B NOR SS/RS L35 Convertible - Restored

Z10Mike

#4
June 05, 2018, 07:47:39 AM
No.  Unique tubular type cross member for the THM-400.  Mounts to the rear or the THM-350 position. 

bcmiller

#5
June 05, 2018, 07:48:13 AM
Yoke is different.
http://www.camaros.org/driveshaft.shtml

Driveshaft may be different, what year? See link above.

Cross member is different.
http://www.camaros.org/trans.shtml#Crossmember

Bryon / 1968 Camaro SS 396 coupe - now old school 468 big block
1967 Camaro RS/SS 396 coupe L35/M40 - project
Looking for 68 Camaro with body # NOR 181016
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