C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

700R4 and Cross Member

Thread Tools
 
Search this Thread
 
Old 02-19-2002, 11:15 PM
  #1  
Red73
Melting Slicks
Support Corvetteforum!
Thread Starter
 
Red73's Avatar
 
Member Since: Feb 2000
Location: Fairport NY
Posts: 3,050
Likes: 0
Received 8 Likes on 5 Posts

Default 700R4 and Cross Member

So I ordered the Cross Member from Bow Tie Overdrive that goes with the 700R4 and I go to put it on and the tail shaft on the tranny hits the cross member bar and there is a 1/2" to 3/4" gap between the tranny mount and the mounting plate on the cross member. Any one else have this problem with this cross member? Can I cut off what looks to be a mounting location on the tail shaft of the tranny? I would love to have this cross member work.





[Modified by Red73, 10:40 PM 2/19/2002]
Old 02-20-2002, 12:28 AM
  #2  
C3 Shark Tank
Safety Car
 
C3 Shark Tank's Avatar
 
Member Since: Jan 2001
Location: No longer a member
Posts: 3,990
Likes: 0
Received 0 Likes on 0 Posts
Default Re: 700R4 and Cross Member (Red73)

Your pictures aren't showing up. I have the crossmember on mine and it was a perfect fit. I wouldn't start chopping things yet.
Old 02-20-2002, 12:30 AM
  #3  
TedH
Le Mans Master
Support Corvetteforum!
 
TedH's Avatar
 
Member Since: Feb 1999
Location: Tampa Bay FL
Posts: 8,344
Received 66 Likes on 53 Posts

Default Re: 700R4 and Cross Member (Red73)

Mine was also perfect fit. Need those pics...
Old 02-20-2002, 12:47 PM
  #4  
Red73
Melting Slicks
Support Corvetteforum!
Thread Starter
 
Red73's Avatar
 
Member Since: Feb 2000
Location: Fairport NY
Posts: 3,050
Likes: 0
Received 8 Likes on 5 Posts

Default Re: 700R4 and Cross Member (TedH)

Sorry about the pics. I just received an e-mail from Steve Holmes and he said I could cut the tabs off or he would send me a different tail piece.
I'll cut the tabs off this afternoon. Rod


:cheers:


[Modified by Red73, 12:17 PM 2/20/2002]
Old 02-20-2002, 01:01 PM
  #5  
SmokedTires
Le Mans Master
 
SmokedTires's Avatar
 
Member Since: Apr 2000
Location: B'Ville NY
Posts: 7,562
Received 9 Likes on 9 Posts
Cruise-In III Veteran
St. Jude Donor '05

Default Re: 700R4 and Cross Member (Red73)

Hey Rod, hows your new family member doing ? I want to drive my vette to Bowling Green in May so I plan on doing some driving before hand so I may take a trip to Rochester once the weather breaks and the car's all back together :D .
Old 02-20-2002, 01:13 PM
  #6  
faster69
Instructor
 
faster69's Avatar
 
Member Since: Feb 2002
Location: hersey mi
Posts: 154
Likes: 0
Received 0 Likes on 0 Posts
Default Re: 700R4 and Cross Member (Red73)

sorry I can't help. I fabricated an adaptor to work with my stock cross member. My 700r4 is out of a 84 vette - I'm not sure if the tail peice is the same as yours
Old 02-20-2002, 02:01 PM
  #7  
JohnS_77
Melting Slicks
 
JohnS_77's Avatar
 
Member Since: Dec 2000
Location: Lexington, North Carolina
Posts: 3,242
Likes: 0
Received 0 Likes on 0 Posts

Default Re: 700R4 and Cross Member (SmokedTires)

I plan on doing some driving before hand so I may take a trip to Rochester once the weather breaks and the car's all back together :D .
That would be cool! Keep us posted.
Old 02-20-2002, 02:28 PM
  #8  
Ingar, Norway
Racer
 
Ingar, Norway's Avatar
 
Member Since: Apr 2000
Location: Kristiansand
Posts: 499
Likes: 0
Received 0 Likes on 0 Posts
Default Re: 700R4 and Cross Member (Red73)

I made a new crossmember from a 8x8cm standard steel profile.
With cutouts for dual exhaust that runs straight back from the Dynomax headers without interfering with the transmission.
Pictures in the 700r4 article at the tech section at my site.

My original plan was to modify just the trans bracket on a 1976 crossmember that I found at a wreck yard, but it didn't fit my 1980 frame mountings, also the right hole for the exhaust was covered by the 700r4.

This was my first attempt with my new Mig welder (no former experience) and took a day to complete.
Should have bought a MIg years ago, they are very easy to use.
Will post some pictures of the crossemember/exhaust later.
Old 02-20-2002, 09:15 PM
  #9  
Double Aught
Race Director
 
Double Aught's Avatar
 
Member Since: Aug 2000
Posts: 12,940
Received 18 Likes on 12 Posts

Default Re: 700R4 and Cross Member (faster69)

The standard cross member that BTO supplies didn't work with my Pace Car. It caused the drivetrain angle to kick up, causing the fan to hit the shroud. It was sent back and to here BTO talk, they had never had that happen until my car and get this, one 76 they were doing in their shop at the very same time. They reworked another cross member and that one worked. What a gigantic PIA.
Old 02-20-2002, 09:36 PM
  #10  
dennisr
Pro
 
dennisr's Avatar
 
Member Since: Jan 2000
Location: Clever, Mo. USA
Posts: 569
Likes: 0
Received 1 Like on 1 Post
Default Re: 700R4 and Cross Member (sd pacecar)

Ever since i put the BTO crossmember in my 71 a have vibration at about 45mph and faster. I have not had a chance to troubleshoot yet because other projects have had the car down. My best guess at this point is with the crossmember. There is a little left to right adjustment I'm going to try before I go too far. It seems I remember having to shove the transmission one way or the other to get the crossmember bolts in. I'm thinking this may have caused enough of a misalignment to cause the vibration. Anyone else run into this?
Old 02-20-2002, 10:42 PM
  #11  
Red73
Melting Slicks
Support Corvetteforum!
Thread Starter
 
Red73's Avatar
 
Member Since: Feb 2000
Location: Fairport NY
Posts: 3,050
Likes: 0
Received 8 Likes on 5 Posts

Default Re: 700R4 and Cross Member (dennisr)

Cross member is in thanks to help from Steve Holmes from BTO. Smokedtires, Let us know when your coming to town. The new addition is doing great, all the way up to 7 pounds 7 ounces. Rod


[Modified by Red73, 9:47 PM 2/20/2002]
Old 02-21-2002, 12:05 AM
  #12  
Chris69
Burning Brakes
 
Chris69's Avatar
 
Member Since: Jul 2000
Posts: 1,118
Likes: 0
Received 0 Likes on 0 Posts
Default Re: 700R4 and Cross Member (Red73)

BTO said something about coming out with a new design that allows existing exhaust clearance (for later models). That happen yet?
Old 02-21-2002, 03:44 PM
  #13  
Red73
Melting Slicks
Support Corvetteforum!
Thread Starter
 
Red73's Avatar
 
Member Since: Feb 2000
Location: Fairport NY
Posts: 3,050
Likes: 0
Received 8 Likes on 5 Posts

Default Re: 700R4 and Cross Member (Chris81)

Chris, You have an e-mail. Rod :cheers:
Old 02-21-2002, 04:46 PM
  #14  
Chris69
Burning Brakes
 
Chris69's Avatar
 
Member Since: Jul 2000
Posts: 1,118
Likes: 0
Received 0 Likes on 0 Posts
Default Re: 700R4 and Cross Member (Red73)

Tnx, Rod! That's a big difference and looks like it'll be perfect. Time to call BTO... :yesnod:

Get notified of new replies

To 700R4 and Cross Member




Quick Reply: 700R4 and Cross Member



All times are GMT -4. The time now is 08:56 AM.