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 > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 12-13-2009, 02:30 PM   #1
surfink9
Registered User
 
Join Date: Dec 2009
Location: Watsonville, California
Posts: 3
700R4 Tranny for 1970 K10 4x4

I have a 1970 K10 4x4 that currently has a SBC 350 with a Turbo 350 tranny. I want to swap the Turbo 350 tranny for a 700R4 tranny. Has anyone done this swap before? I'm guessing that there must be a conversion kit with new brackets or tranny mounts. I'm going to mate the new tranny to a 383 stroker. If anyone has done the tranny swap I'd love to hear how you did it and any mods that are needed. Thanks!
surfink9 is offline   Reply With Quote
Old 12-13-2009, 03:19 PM   #2
haysonj
Registered User
 
haysonj's Avatar
 
Join Date: Dec 2007
Location: Santa Maria, Ca.
Posts: 1,423
Re: 700R4 Tranny for 1970 K10 4x4

Quote:
Originally Posted by surfink9 View Post
I have a 1970 K10 4x4 that currently has a SBC 350 with a Turbo 350 tranny. I want to swap the Turbo 350 tranny for a 700R4 tranny. Has anyone done this swap before? I'm guessing that there must be a conversion kit with new brackets or tranny mounts. I'm going to mate the new tranny to a 383 stroker. If anyone has done the tranny swap I'd love to hear how you did it and any mods that are needed. Thanks!
I'm sure it can be done but you may have trouble finding the adapter to your transfer case. You may have to change to a 208 transfer case.
__________________
69 Chevy 4x4 383 Power
haysonj is offline   Reply With Quote
Old 12-13-2009, 03:25 PM   #3
72chevyk10
I built it
 
72chevyk10's Avatar
 
Join Date: Sep 2008
Location: Bakersfield ca
Posts: 744
Re: 700R4 Tranny for 1970 K10 4x4

i may be compleatly wrong (probly am ) but i thought the th350 and 700r4 used the same t-case adapter?
__________________
'72 k10 lwb 454, th400, 205, d44ft, 12b rear, 4in skyjacker, 35x12.5-15 superswampers, 4.56, blazer tank. painless wiring harness
'98 dodge 3500 12v 5sp 4x4. the truck that actually runs


Quote:
Originally Posted by prostreetC-10 View Post
I think the best and cheapest performance mod is to have someone that knows what the hell they are doing perform a tuneup on said vehicle.
72chevyk10 is offline   Reply With Quote
Old 12-13-2009, 03:44 PM   #4
mrein3
Registered User
 
mrein3's Avatar
 
Join Date: Feb 2000
Location: Center City, MN, USA
Posts: 3,253
Re: 700R4 Tranny for 1970 K10 4x4

Quote:
Originally Posted by 72chevyk10 View Post
i may be compleatly wrong (probly am ) but i thought the th350 and 700r4 used the same t-case adapter?
You are completely right. However you need to put a different output shaft in the 700r4. Search Advanced Adapters website for the part. The last time I priced this swap out the output shaft was cheaper at Summit Racing than the AA website.

Because the transmission is almost two inches longer than the th350, you'll need to move your engine forward that distance or move the t-case back and do work on your driveshafts. It seems the consensus here is it is best to move the engine forward.

This swap is on my list. I even have the core transmission on the floor in the shop waiting for the money to have it rebuilt and have that output shaft installed.
__________________
'70 cab, '71 chassis, 383, TH350, NP205.
'71 Malibu convertible
'72 Malibu hard top
Center City, MN
mrein3 is offline   Reply With Quote
Old 12-13-2009, 03:47 PM   #5
haysonj
Registered User
 
haysonj's Avatar
 
Join Date: Dec 2007
Location: Santa Maria, Ca.
Posts: 1,423
Re: 700R4 Tranny for 1970 K10 4x4

Quote:
Originally Posted by 72chevyk10 View Post
i may be compleatly wrong (probly am ) but i thought the th350 and 700r4 used the same t-case adapter?
That would depend on what T case he has I had to change mine when I went from the 205 to the 208. 205 is all steel and 208 is aluminum I also had to change the out put shaft in the T400 so if he gets a 700R4 that was not in a 4x4 he may have to change the output shaft. I'm not sure on any of this just saying what I went through.
__________________
69 Chevy 4x4 383 Power
haysonj is offline   Reply With Quote
Old 12-13-2009, 07:46 PM   #6
ksbeatty
Registered User
 
ksbeatty's Avatar
 
Join Date: Mar 2006
Location: Kansas
Posts: 300
Re: 700R4 Tranny for 1970 K10 4x4

I did this swap and you cna use all of the stock stuff. I moved the engine further forward which helped the distance between the firewall and the dist and had to move the linkage for shifting forward a little. But besides that they are right you need the right output shaft for your transfer case but you can use all of the stock cross members and drive shafts.
__________________
1969 GMC 3/4 Ton 4x4
2" Lift, A/C, PS, PB
383 Stroker, 700R4, 205, 4.10 GM
Medium Bronze (Copper Poly)
no new nick name yet. She is to pretty to be the Beater.
http://67-72chevytrucks.com/vboard/s...d.php?t=241855
ksbeatty is offline   Reply With Quote
Old 07-28-2013, 06:36 PM   #7
usafdaytonan
Registered User
 
Join Date: Jul 2009
Location: Daytona Beach, Fl
Posts: 7
Re: 700R4 Tranny for 1970 K10 4x4

Did anyone doing this swap have any issues using the existing turbo 350 tv cable with the new 700r4? I put a 90 700r4 tranny in my 70 k5 blazer and the cable hookup just doesn't seem right I had to fight it all the way, jus curious if anyone else had any issues, for the original post I had to get a new output shaft for the transmission and move my mounting backets back about 1.5 inches and shorten the rear driveshaft
usafdaytonan is offline   Reply With Quote
Old 07-28-2013, 07:36 PM   #8
72chevyk10
I built it
 
72chevyk10's Avatar
 
Join Date: Sep 2008
Location: Bakersfield ca
Posts: 744
Re: 700R4 Tranny for 1970 K10 4x4

th350 has no tv setup. its all vac, the cable on it is only kickdown. wait for someone with 700r experience to chime in for some help setting it up
__________________
'72 k10 lwb 454, th400, 205, d44ft, 12b rear, 4in skyjacker, 35x12.5-15 superswampers, 4.56, blazer tank. painless wiring harness
'98 dodge 3500 12v 5sp 4x4. the truck that actually runs


Quote:
Originally Posted by prostreetC-10 View Post
I think the best and cheapest performance mod is to have someone that knows what the hell they are doing perform a tuneup on said vehicle.
72chevyk10 is offline   Reply With Quote
Old 07-28-2013, 07:41 PM   #9
ckhd
Registered User
 
ckhd's Avatar
 
Join Date: Oct 2000
Location: St. Johns, Arizona
Posts: 2,660
Re: 700R4 Tranny for 1970 K10 4x4

Quote:
Originally Posted by mrein3 View Post
You are completely right. However you need to put a different output shaft in the 700r4. Search Advanced Adapters website for the part. The last time I priced this swap out the output shaft was cheaper at Summit Racing than the AA website.

Because the transmission is almost two inches longer than the th350, you'll need to move your engine forward that distance or move the t-case back and do work on your driveshafts. It seems the consensus here is it is best to move the engine forward.
That's how I did my 1972 K-10 'Burb. Different output shaft, moved the crossmember forward. I also changed the transmission linkage. I got the output shaft and linkage from Advanced Adapters. Had to get a TV kit from them too to mate the TV cable to my carberator.
__________________
my 2¢ - t.i.o.l.i.
Bowen

1968 K20 fleet
1969 K10 swb fleet
1972 K10 Suburban
1972 C10 lwb step
1992 K1500 'burb
1995 K2500 'burb
1997 C1500 'burb
1999 K1500
2000 K1500 'burb

Why do I own so many Suburbans?
ckhd is offline   Reply With Quote
Old 07-28-2013, 07:48 PM   #10
birdistheword
Registered User
 
birdistheword's Avatar
 
Join Date: Apr 2011
Location: Tacoma, Washington
Posts: 236
Re: 700R4 Tranny for 1970 K10 4x4

If you are running a Carter/Edelbrock carb make sure you get the little linkage geometry corrector bracket that bolts on to your carb. And adjust your TV cable right or you will burn the 700R4 up. Check out www.transmissioncenter.net
__________________
Erik
1969 Chevy K20 6.0L/4L80E/NP205
1971 Chevy C30 Cheyenne Longhorn 454/TH400
1979 Chevy K30 dually currently in pieces
birdistheword is offline   Reply With Quote
Old 07-28-2013, 09:16 PM   #11
teeitup
Just like to part out trucks!!
 
teeitup's Avatar
 
Join Date: Nov 2001
Location: Meriden, Ks-North of Topeka 10 miles
Posts: 27,396
Re: 700R4 Tranny for 1970 K10 4x4

I'm wanting to do this on my 67, subscribed
__________________
67 Chev swb stepside 4x4 283 4 speed SOLD
72 blazer 4x4 4 speed Cheyenne
72 GMC swb 4x4 fleet 4 speed, original paint
1958 Cameo (one of 1405 built, it was my dads)
2020 chevy Apex 4x4 crew cab
1969 Z28 with the 302
1980 chevy swb 4x4
1964 chevell Malibu SS
1976 K20, sold new originally out of my dads chevy dealership


Members that I've met, over 200 probably closer to 300 in the 12 years I've been on this site, everyone I met "It was a pleasure"
teeitup is offline   Reply With Quote
Old 07-29-2013, 11:33 AM   #12
Dova
Registered User
 
Dova's Avatar
 
Join Date: Jul 2007
Location: Silverdale, WA
Posts: 263
Re: 700R4 Tranny for 1970 K10 4x4

Bowties has all kinds of information on the tv set up that you will need. http://bowtieoverdrives.com/index.shtml
Dova is offline   Reply With Quote
Old 08-23-2013, 05:45 PM   #13
usafdaytonan
Registered User
 
Join Date: Jul 2009
Location: Daytona Beach, Fl
Posts: 7
Re: 700R4 Tranny for 1970 K10 4x4

I just completed my swap...thanks for the info on the tv cable, my 700r4 came out of a 90 burb 2wd, I had to get a shorter output shaft as described, and I moved my tcase crossmember back about 1.5". I had to get a new front driveshaft made anyways due to the 6" lift I put on previously. I ordered a new tv cable and carb linkage adapter off ebay (roughly $50.00) Only hiccup o far is the dipstick outta the burb wouldn't fit in my 70 k5 so I stuck with the one that was in the truck and haveta guess when its full. (10qts so far so good) all in all wasn't a bad swap...Im into it about $800
Free tranny $0
Installation of shorter shaft $600
TV cable and linkage $50.00
12 qts synthetic tranny fluid $90.00
Saving gas mileage and wear tear on my motor:priceless
usafdaytonan is offline   Reply With Quote
Reply

Bookmarks

Tags
700r4, turbo 350, turbo 400


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 03:42 AM.


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