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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: daman02 on January 01, 2006, 08:37:00 pm

Title: 700r4 swap
Post by: daman02 on January 01, 2006, 08:37:00 pm

i have a 86 silverado with a factory turbo 400 in it.  I'm about to convert to a 700r4.  Will it drop right in w/o any driveshaft mods?  what all do i need to complete the installation?

Title: Re: 700r4 swap
Post by: roundedline on January 02, 2006, 02:04:00 pm

The trans mount will have to moved, and the input shaft will have to be changed.  I can't remember exactly, but I think the driveshaft lenght might have to be modified also

Chris Lucas
www.73-87chevytrucks.com
www.captkaoscustoms.com
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Title: Re
Post by: Chevynut on January 19, 2006, 06:08:00 am

I've thought about instaling a 700r4 in my '73 350/350.  The question is - will it go in and hook up ok?  Sure would like to have that 4th gear .  Hope yours works out ok.

Thanks    

'73 Cheyenne
Long live the Chevy Truck

Title: Re: 700r4 swap
Post by: daman02 on January 19, 2006, 08:08:00 am

if you have a long tailshaft 350 the 700r4 should bolt right up w/o any driveshaft mods.

Title: Re: 700r4 swap
Post by: Ziptar on January 20, 2006, 04:04:00 am

I can confirm that, swapped my Long Tail TH350 for a 700R4, everything fit right into place with the exception of having to drill 5 new holes in the fram to accomodate sliding the trans cross memebr back about 1.5".

Title: Re
Post by: Chevynut on January 20, 2006, 05:00:00 am

Sounds good - and thanks for the info.

'73 Cheyenne
Long Live The Chevy Truck