The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > Racing and high performance (trucks haulin more than hay)

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 12-08-2009, 04:03 PM   #1
GWEE
Registered User
 
GWEE's Avatar
 
Join Date: Jan 2007
Location: LOUISIANA
Posts: 151
from 700r4 to th400

My 84 GMC has a 700r4 and im going to put in a th400 when i put my new engine in. My question is do i have to move or change the tans crossmember. If i have to get another one who sells them.

Thanks
__________________
1985 GMC ( future plan pro tour build for the wife )

Black 2013 GMC single cab 4/7 drop on 24'' Torque Thrust ST
rules
GWEE is offline   Reply With Quote
Old 12-08-2009, 06:58 PM   #2
americanmusc1e
Senior Member
 
americanmusc1e's Avatar
 
Join Date: Jan 2009
Location: Austin, TX
Posts: 1,079
Re: from 700r4 to th400

Quote:
Originally Posted by GWEE View Post
My 84 GMC has a 700r4 and im going to put in a th400 when i put my new engine in. My question is do i have to move or change the tans crossmember. If i have to get another one who sells them.

Thanks

i think you can move your existing crossmember 3" forward, but I think you'll need a th400 yoke on your driveshaft............ and your driveshaft will need to be lengthened approx 3"
__________________
-- Josh

Instagram: @americanmusc1e

OLD SKOOL-- 1970 C10. 454/Th400/3.07 posi Build Thread
FARM TRUCK----1949 Chevrolet 3800 Power Wagon Hauler Build Thread

1999 4wd OBS Tahoe - daily.

DM me if you can't see photos i posted
americanmusc1e is offline   Reply With Quote
Old 12-08-2009, 07:11 PM   #3
GWEE
Registered User
 
GWEE's Avatar
 
Join Date: Jan 2007
Location: LOUISIANA
Posts: 151
Re: from 700r4 to th400

Thank you very much, i going to buy a new driveshaft. That sounds easy enough to do.
__________________
1985 GMC ( future plan pro tour build for the wife )

Black 2013 GMC single cab 4/7 drop on 24'' Torque Thrust ST
rules
GWEE is offline   Reply With Quote
Old 12-12-2009, 10:52 PM   #4
KQQL IT
At the body shop.
 
KQQL IT's Avatar
 
Join Date: Aug 2009
Location: Land of fruits and nuts.
Posts: 5,256
Re: from 700r4 to th400

Also if you can find one get a 75 or older X-member as they have room for dual exhuast or 3/4 ton with some minor fab work room for 3" dual exhaus.Like this
__________________
" That didnt make it any newer "
" Dont antique the equipment "

Last edited by KQQL IT; 12-12-2009 at 10:52 PM. Reason: cant proof read
KQQL IT is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 12:16 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com