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07-13-2003, 11:24 PM
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#1 |
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Registered User
 
Join Date: Jul 2003
Location: Las Cruces, NM
Posts: 284
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auto trans driveshaft
i removed a 4 speed compound tranny from my 71 GMC, i'm installing a 700R4, anyone know if i'll need to build a driveshaft or can i find one by application?
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07-13-2003, 11:47 PM
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#2 |
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Formerly yellow72custom
Join Date: May 2001
Location: Austin, TX
Posts: 7,531
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You will proably have to have your current driveshaft shortned several inches. I would go ahead and bolt the 700R4 in and see how your stock driveshaft compares in lenght. The 700R4 proably uses a different yolk than your four speed. Any driveshaft shop should be able to take care of that for you. Maybe a good time to go with a one piece driveshaft.
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'72 Chevy C10 Mild 350/TH350/3.07. Ochre/White. Old high school ride. '70 GMC C2500 '62 327 4bbl/SM465/4.56-geared Dana 60. White/White. Project or parts truck. '97 Saturn SL DD. 1.9/5-speed. 40+ highway mpg |
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07-14-2003, 12:00 AM
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#3 |
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Registered User
Join Date: Jul 2003
Location: Las Cruces, NM
Posts: 284
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yea, the 4 speed yoke is bolted to the tranny, and it's 2 piece, i definitely want to 86 that sucker. i think hydramatic 350's use same yoke size as 700.
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07-14-2003, 12:36 AM
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#4 |
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Account Suspended
Join Date: Apr 2000
Location: Grants Pass, Oregon
Posts: 1,580
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I vote for the one piece shaft!
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07-14-2003, 04:12 PM
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#5 | |
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Quote:
I guess I'll be the first to welcome you to the board. Where you located? What's your truck's specs? |
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07-14-2003, 05:27 PM
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#6 |
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Guest
Posts: n/a
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Welcome from So. Cal
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07-14-2003, 08:39 PM
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#7 |
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Registered User
Join Date: May 2000
Location: Frankfort, Kentucky, USA
Posts: 2,163
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I just had one made for my short bed. I think it was 58" and 5/8th.
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'69 CST Short fleetside Lowered, 400 small block, 700R4, 4 wheel disc brakes, front sway bar & rear camaro sway bar (in progress) '87 V10 4x4 Short Fleetside Quad Suspension and Dual Tanks |
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07-14-2003, 08:42 PM
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#8 |
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Registered User
Join Date: Jun 2003
Location: Ponder, TX
Posts: 33
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A TH350 shaft should fit. The 396 engine in my '67 short bed ate the TH700R4 that was in there before I bought the truck, so I swapped in a rebuilt TH350 I had it laying around. I used the same driveshaft with no modifications at all. Only had to move the trans cross member, drill some new holes, replace the TV cable with a detent cable and rebend the coolant lines, and away she went. I would love to have an OD in there, but I will have to have one made a little more robust to live behind the 396. That, and the cost was right for the TH350.
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'67 1/2 Ton Short Bed / 396 cid / AC w-R134a / 5 Lug Leaf spring rear axel / 5 Lug Frt Disk Brake Conversion '97 Trans Am - Black / LT-1 / K&N FIPK Cold Air Kit / Hooker Cat-Back Exhaust / 160 Thermostat '02 Buick Regal GS / Bone Stock |
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07-14-2003, 11:14 PM
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#9 |
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Gas hog, it sounds like you had a 200 4R and not the 700R4. The 200 is the same overall length as a short TH350, the the 700 is no where near the same length.
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07-14-2003, 11:43 PM
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#10 |
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Registered User
Join Date: Jun 2003
Location: Ponder, TX
Posts: 33
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Thought is was 700R4, but could be wrong. Didn't look too hard at it, as the fluid was grey with metal and there were 'chunks' in the pan.
 It was toast. Guess it didn't like that big block torque too much. Oh well, the TH350 works just fine. Now if I can just get the mileage into the double digits I'll be happy.
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'67 1/2 Ton Short Bed / 396 cid / AC w-R134a / 5 Lug Leaf spring rear axel / 5 Lug Frt Disk Brake Conversion '97 Trans Am - Black / LT-1 / K&N FIPK Cold Air Kit / Hooker Cat-Back Exhaust / 160 Thermostat '02 Buick Regal GS / Bone Stock |
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