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Topic: Xmember differences between '68-'79 and '80-'8

in Forum: C3 Driveline Components


Xmember differences between '68-'79 and '80-'8

Posted: 1/7/05 11:20am Message 1 of 4
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Encinitas, CA - USA
Joined: 9/9/2004
Posts: 17
Vette(s): 1968 Roadster with Tremec TKO500.
Hello-
I have a few questions regarding transmission crossmembers:

1) Are the '80-'82 transmission xmembers different than '68-'79 xmembers. From what I have seen, the 68-79 xmembers have bolt on mounting brackets (where the trans actaully mounts) and the 80-82 xmembers have the brackets welded onto the main xmember. Is this accurate?

2) I realize that the 68-79 xmembers for automatic cars are bolt on's (at the frame) and that the 4-speed cars had weld on xmembers (welded to the frame). Is this the same for 80-82's?

Thanks in advance for your help.


Jeff Mortenson |
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Xmember differences between '68-'79 and '80-'8

Posted: 1/7/05 2:15pm Message 2 of 4
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Hobe Sound, FL - USA
Joined: 11/19/2003
Posts: 354
Vette(s): 1962 - 1963 - 1965 - 1980 1986 Roadster 1979 - L-82 - 1989 Roadster 1990 ZR-1.
I was under my 79 today, and I think I saw bolts.
Boatman |saluteflag| |cool|


Xmember differences between '68-'79 and '80-'8

Posted: 1/7/05 2:53pm Message 3 of 4
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WEST SENECA, NY - USA
Joined: 12/3/2001
Posts: 2379
Vette(s): 1981 Blue Ice Met. w/pearl ghost flames TKO500 5speed. LS1 Swap 3.45 Dana 44.
'81 4 speed....bolted in



GEN III 5.7L "LS6" Engine swap
TKO500 5 spd.
3.54 Dana 44
'69 "N11" Sidepipes
Borgeson Steering Box
Born 8/1981
Sequence #3975




Click here to see more pics of my Vette on CarDomain.


Lifetime Member #26

Xmember differences between '68-'79 and '80-'8

Posted: 1/8/05 4:18pm Message 4 of 4
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CUYAHOGA FALLS, OH - USA
Joined: 12/2/2003
Posts: 6424
Vette(s): 1975 C3 Red, T-Tops, Black Interior. All I need is time and money! Getting there!
The 80 and up may not have the hole on the left side for the dual exhaust. 79 and back does, even thought the factory dual went away in 75 when the cat converter was introduced. 74 and older exhaust will fit up to the 79 cross member. True dual exhaust for 80 and up requires special aftermarket pipes.


in Forum: C3 Driveline Components


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