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 02-15-2008, 08:39 AM   #1
Jefe
Registered User
 
Jefe's Avatar
 
Join Date: Jul 2000
Location: Chandler, Arizona, USA
Posts: 299
Truck 4 speed to 200r4 swap Question..

1968 Chevy SWB 307, want to swap out original truck 4 speed for 200r4. I already have the tranny, converter, shifter, detent cable, dipstick+tube, wiring for lock-up and yoke for driveshaft. What kind of crossmember will I need, what kind of wiring will I need to do and are there any tricks or tips someone can give me? Thanks!!


--Douglas.
__________________
-1968 Chevy SWB = Frame Off/383/Muncie Car 4 speed

-1968 Chevy SWB = numbers matching 307/Truck 4 speed.

-1966 Chevy II = 2 door No Post/130,000 Orig miles/230 6cyl/powerglide/Vintage AC

-1972 Chevy Nova = 2 door/412 Small Block

-1927 Ford Roadster = Homebuilt/widened 8"/350/ Custom Everything.
Jefe is offline   Reply With Quote
Old 02-15-2008, 11:28 AM   #2
Jefe
Registered User
 
Jefe's Avatar
 
Join Date: Jul 2000
Location: Chandler, Arizona, USA
Posts: 299
Re: Truck 4 speed to 200r4 swap Question..

ttt please
__________________
-1968 Chevy SWB = Frame Off/383/Muncie Car 4 speed

-1968 Chevy SWB = numbers matching 307/Truck 4 speed.

-1966 Chevy II = 2 door No Post/130,000 Orig miles/230 6cyl/powerglide/Vintage AC

-1972 Chevy Nova = 2 door/412 Small Block

-1927 Ford Roadster = Homebuilt/widened 8"/350/ Custom Everything.
Jefe is offline   Reply With Quote
Old 02-15-2008, 12:46 PM   #3
tkeduk8r
Senior Member
 
tkeduk8r's Avatar
 
Join Date: Apr 2001
Location: Alexandria, MN
Posts: 1,462
Re: Truck 4 speed to 200r4 swap Question..

Easy as pie, just amke soure your have a kit for getting your lockup to work in OD as heat from slipping will kil these trannys quick... You should be able to use your existing cross member since you have a V8 truck allready... just have to move it back a bit to line up... also (cant remember if you said this allready) you will need an auto column or aftermarket floor shifter (lokar for example) and the right bracketry for the TV cable to mount up to your carb.. Bowtie Overdrives makes some nice stuff for this... I did this conversion on my 74 C10 and like it alot...
--Mike
__________________
63 C20 2WD, 230/SM420/4.11 73K
68 C30 dump truck, 327,SM425,4.56 66K original
68 C10 2WD SWB Stepper, 250/3-tree/3.73 66K.... Wifes
68 Buick Skylark Custom Conv., 350/TH400/2.56 In our family since '79
69 GMC 1500 SWB 2WD, 350/TH350/3.73 posi...
70 K10 SWB 4X4 4-sp,ps, pb, tilt, buckets, console, sliding back window (Need AC parts) WIP
72 Chevy K20 4x4 350/350/205/4.56 donor
72 Vette 350/M21/3.70 posi, triple black and super fast
84 Olds Cutlass Brougham 350/2004r/4.11 was Dad's
tkeduk8r is offline   Reply With Quote
Old 02-15-2008, 09:44 PM   #4
Jefe
Registered User
 
Jefe's Avatar
 
Join Date: Jul 2000
Location: Chandler, Arizona, USA
Posts: 299
Re: Truck 4 speed to 200r4 swap Question..

Thanks for the help. I will check out that website, and I believe the tranny was already internally wired up correctly because the guy I bought it from had it in an older car. I do have a B&M shifter ready to go. I think I may need to get a crossmember though since this is a manual truck and doesn't have one, just the one that the bellhousing bolts too. And does anyone know if I need to remove that crossmember that the housing bolts too? Any other tips would be great. This board rocks!

--Douglas.
__________________
-1968 Chevy SWB = Frame Off/383/Muncie Car 4 speed

-1968 Chevy SWB = numbers matching 307/Truck 4 speed.

-1966 Chevy II = 2 door No Post/130,000 Orig miles/230 6cyl/powerglide/Vintage AC

-1972 Chevy Nova = 2 door/412 Small Block

-1927 Ford Roadster = Homebuilt/widened 8"/350/ Custom Everything.
Jefe is offline   Reply With Quote
Old 02-15-2008, 09:56 PM   #5
Ole Blue 68
Registered User
 
Ole Blue 68's Avatar
 
Join Date: Aug 2005
Location: Philly
Posts: 1,140
Re: Truck 4 speed to 200r4 swap Question..

Yep you're gonna need an auto crossmember to replace that manual one. You can probably find one pretty easily here on the board or locally from Craigslist or a scrapyard. You can also buy a new one from places like ECE, CPP or Brother's.

Be prepared 'cause taking out the stock crossmember can be a pain....
Ole Blue 68 is offline   Reply With Quote
Old 02-15-2008, 11:36 PM   #6
hyarbour
Registered User
 
Join Date: Jan 2007
Location: Fairview, ks
Posts: 203
Re: Truck 4 speed to 200r4 swap Question..

Bowtie Overdrives also sells a bolt in cross member, it's kind of cheesy though. If you can find a stock one go for it, the holes are already there
hyarbour is offline   Reply With Quote
Old 02-16-2008, 12:45 AM   #7
Ole Blue 68
Registered User
 
Ole Blue 68's Avatar
 
Join Date: Aug 2005
Location: Philly
Posts: 1,140
Re: Truck 4 speed to 200r4 swap Question..

Quote:
Originally Posted by hyarbour View Post
Bowtie Overdrives also sells a bolt in cross member, it's kind of cheesy though. If you can find a stock one go for it, the holes are already there
Ole Blue 68 is offline   Reply With Quote
Old 02-16-2008, 02:18 AM   #8
Jefe
Registered User
 
Jefe's Avatar
 
Join Date: Jul 2000
Location: Chandler, Arizona, USA
Posts: 299
Re: Truck 4 speed to 200r4 swap Question..

Right on. I try to use original when ever I can. Do you know if the floor hump is the correct one to put in an auto? It's originally a truck 4 speed. Thanks


--Douglas.
__________________
-1968 Chevy SWB = Frame Off/383/Muncie Car 4 speed

-1968 Chevy SWB = numbers matching 307/Truck 4 speed.

-1966 Chevy II = 2 door No Post/130,000 Orig miles/230 6cyl/powerglide/Vintage AC

-1972 Chevy Nova = 2 door/412 Small Block

-1927 Ford Roadster = Homebuilt/widened 8"/350/ Custom Everything.
Jefe is offline   Reply With Quote
Old 02-16-2008, 02:25 AM   #9
Ole Blue 68
Registered User
 
Ole Blue 68's Avatar
 
Join Date: Aug 2005
Location: Philly
Posts: 1,140
Re: Truck 4 speed to 200r4 swap Question..

Somebody else can chime in but I don't think the hump size matters much. The trans will fit regardless. Are you staying with a floor shift or a column shift with the auto?
Ole Blue 68 is offline   Reply With Quote
Old 02-16-2008, 03:10 AM   #10
CPNEJR
Registered User
 
CPNEJR's Avatar
 
Join Date: Sep 2003
Location: Franconia,N.H.
Posts: 1,029
Re: Truck 4 speed to 200r4 swap Question..

with the 4 speed you should have a high hump. correct me if i'm wrong but i believe that most autos had a small hump so there shouldn't be any kind of clearance issue there.
__________________
(Only) Member of the CPNE Fan Club Aint that the truth
67 C-10 350 with 3-speed tranny and 308 gears swb step
82 Z28 Camaro 355 small block over 350 hp and a borg warner super t-10 (blown engine)
72 Chevy K20 Suburban (future project)
70 Chevy K20 now 68 GMC K2500
2003 Chevy 2500hd ccsb 4X4 (daily driver)
CPNEJR is offline   Reply With Quote
Old 02-16-2008, 04:22 AM   #11
Jefe
Registered User
 
Jefe's Avatar
 
Join Date: Jul 2000
Location: Chandler, Arizona, USA
Posts: 299
Re: Truck 4 speed to 200r4 swap Question..

Floor Shift. B&M Megashifter with a cable, so it will sit on top of hump with the cable run through the floor. I wasn't sure if the hump mattered or not. But I do believe I have the high hump after compairing to my other 68. (beauty of having 2 of the same trucks hehe. ) Thanks for all the help guys, few more weeks of gathering a few parts and then I will tackle it. I have heard of 700r and 200r's going out quickly if the wiring is wrong, so I will need to look at some diagrams and make sure I get it right the first time! Looking forward to that overdrive let me tell you.

--Douglas.
__________________
-1968 Chevy SWB = Frame Off/383/Muncie Car 4 speed

-1968 Chevy SWB = numbers matching 307/Truck 4 speed.

-1966 Chevy II = 2 door No Post/130,000 Orig miles/230 6cyl/powerglide/Vintage AC

-1972 Chevy Nova = 2 door/412 Small Block

-1927 Ford Roadster = Homebuilt/widened 8"/350/ Custom Everything.
Jefe is offline   Reply With Quote
Old 02-16-2008, 10:55 PM   #12
Ole Blue 68
Registered User
 
Ole Blue 68's Avatar
 
Join Date: Aug 2005
Location: Philly
Posts: 1,140
Re: Truck 4 speed to 200r4 swap Question..

No, hump size shouldn't matter. The only thing that might be a problem is floor shifter location. Aren't the floor shifters towards the front of the cab on the 4 spds?
Ole Blue 68 is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

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 01:48 AM.


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