C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
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Old Mar 14, 2012 | 12:04 PM
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It's been awhile since I've posted. I'm back to work on my 68 Convertible after 2 years. For some stupid reason a I put a 200R4 in it when the body was off. I now want to put the 4 spd back in it. It's done except for paint so I really don't want to take it all apart again. My question is, is there a way to remove the welded in cross member and the put it back in ? Reweld or something ? Or a way to bolt it back in ? I sure need some advice from someone who has done this.
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Old Mar 14, 2012 | 12:11 PM
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Can you partially disassemble the 200R4 to remove it without removing the crossmember?
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Old Mar 14, 2012 | 01:34 PM
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I don't think the 4 spd will go in with the cross member there either.
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Old Mar 14, 2012 | 01:42 PM
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The 4 speed can be removed/installed no problem, I pull the engine to get my 5 speed in and out, I would not consider cutting my cross member others may.
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Old Mar 14, 2012 | 01:55 PM
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The 200R4 has a one-piece housing and can't be taken apart to remove it from the car.....I have one with a welded crossmember also
People have done the mod you're asking about(do a forum search), personally I would prefer to do it right and remove the motor, as either way you're looking at at least a weekends worth of work. Now would be a good time to do it before painting the car
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Old Mar 14, 2012 | 04:14 PM
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Thanks for the input guys. Fortunately the tail of the 700R4 is right even with the back of the cross member. I've got the torque converter loose & the bolts out to the engine. I'm hoping I can force it back enough to tilt it down & out.
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Old Mar 14, 2012 | 04:23 PM
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Do you have a 700 or a 200? You first post says 200. With the 700 you can remove the tailshaft housing which may buy you some more room, but it is longer than the 200 and still may not come out
Sounds like you have a 200...... I'm interested to see how you do this, as I may have to do it someday

Last edited by 682XLR8; Mar 14, 2012 at 06:25 PM. Reason: needed to add info
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Old Mar 15, 2012 | 07:18 AM
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It's a 200 & I'll let you know what happens.
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Old Mar 15, 2012 | 07:09 PM
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OK, I have the tranny unbolted but there is no way it will come out without moving the engine ahead. After about 4 hours today & lots of naughty words I gave up. I'm thinking I can just lift the engine enough to get over the motor mounts & scoot it ahead a few inches. I've drained the radiator & removed the hoses. I'm just dreading removing everything else. (headers, fuel pump, starter ???? ) And I thought getting the brake & clutch pedals back in was going to be the hard part. All I can say right now is RATS !
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Old Mar 15, 2012 | 09:12 PM
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i put a 700r4 in my 69 with the 4 speed cross member in place. i cut off the top of the parking brake console from inside the car. it gave me just enough clearance to tip the 700r4 down by the front and get it in. don't know if it will work for removal.
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