Author Topic: 350 to 400 trans swap  (Read 677 times)

Twinsilk

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350 to 400 trans swap
« on: June 04, 2018, 07:28:38 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

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Re: 350 to 400 trans swap
« Reply #1 on: June 05, 2018, 01:49:05 AM »
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

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Re: 350 to 400 trans swap
« Reply #2 on: June 05, 2018, 03:18:02 AM »
400 trans is longer - plus the different yoke.

Regards,
Steve
1968 Z28 M21/U17 BRG/W
1969 Z28 X77/M20/VE3 LeMans/W
1969 L78 X66/N66 Cortez/BVT
1969 Z11 L48/M35/C60/C06

Mike S

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Re: 350 to 400 trans swap
« Reply #3 on: June 05, 2018, 03:38:43 AM »
 Is the cross member for a TH400 the same as the TH350?

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

Z10Mike

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Re: 350 to 400 trans swap
« Reply #4 on: June 05, 2018, 12:47:39 PM »
No.  Unique tubular type cross member for the THM-400.  Mounts to the rear or the THM-350 position. 

bcmiller

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Re: 350 to 400 trans swap
« Reply #5 on: June 05, 2018, 12:48:13 PM »
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 RS/SS 396 coupe L35/M40 - 4 generation family project
Looking for 68 Camaro with body # NOR 181016