700r4 swap and driveshaft ? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

roughedup72 · 12-30-2005, 05:42 PM

hey guys, I'm getting a 700r4 out of a 99 tahoe with 38k miles on it. My question is, will this tranny work in my 72 and if I found a drive shaft out of a long bed 90's model with a 700r4 could I use it instead of having to get my drive shaft shortened? Just wondering. thanks for any advice.

stueber68 · 12-30-2005, 06:29 PM

Okay, number one the trans in the 99 is a 4l60e not a 700r4. You don't want it in your 72. Number two, the 72 uses a 2 piece shaft and the early 90's is a 1 piece. Start over. The trans you want would be out of 85 - 92 model.

roughedup72 · 12-30-2005, 08:09 PM

thanks,so the 4l60e wouldn't work at all? or could it be made to work and nobody has done it yet.Just wondering cause I could get a really good deal on this tranny and would hate to pass it up.
now about the one piece drive shaft, i looked at one at the salvage yard yesterday and it was a two piece. The only reason I brought it up was because if it was connected to a 700r4 and was a long bed would it fit, be to long, or would it even bolt up at all? thoughts to ponder.

sinister72 · 12-30-2005, 10:08 PM

find you a good 1 piece drive shaft ,have it shortened ,less trouble in the end!

neonlarry · 12-30-2005, 11:19 PM

Best way to tell on the drive shaft is to measure. The 4L60E will work, but by the time you get an aftermarket controller for it it won't be such a good deal anymore.

Longhorn Man · 12-31-2005, 12:03 AM

Larry has it right. It is a computer controlled tranny, it takes all it's input from the computer. The controller you'd need would cost more than you want to spend on the whole set up. You could do a gear vendors for that much and be 10 times stronger.
If you want an easy swap, get a TH200 4R. It will physicly bolt in where a TH350 was, all you need to do is move the crossmember to the TH400 spot, then get the kits needed for the TV cable and the lock up controll. Even a stock TH350 drive shaft will fit no problem.

roughedup72 · 01-01-2006, 12:27 AM

I thought about the 200r4 but I plan on towing a boat one day and I use the truck for hauling firewood,which is what I did today and damn I beat.

Longhorn Man · 01-01-2006, 12:37 AM

the 700 isn't much more of a tranny than the 200, and in some ways, the 700 is weaker.
Either one in stock form is OK for once in a while towing and hauling.

12-30-2005, 05:42 PM	#1
roughedup72 Senior Member Join Date: Oct 2005 Location: south carolina Posts: 658	700r4 swap and driveshaft ? hey guys, I'm getting a 700r4 out of a 99 tahoe with 38k miles on it. My question is, will this tranny work in my 72 and if I found a drive shaft out of a long bed 90's model with a 700r4 could I use it instead of having to get my drive shaft shortened? Just wondering. thanks for any advice.

12-30-2005, 06:29 PM	#2
stueber68 1968 C20 Vortec Beast Join Date: Jun 2005 Location: STILLWATER,OKLAHOMA Posts: 483	Re: 700r4 swap and driveshaft ? Okay, number one the trans in the 99 is a 4l60e not a 700r4. You don't want it in your 72. Number two, the 72 uses a 2 piece shaft and the early 90's is a 1 piece. Start over. The trans you want would be out of 85 - 92 model. __________________ Ugly or not it still kicks a*! Last edited by stueber68; 12-30-2005 at 06:30 PM.*

12-30-2005, 08:09 PM	#3
roughedup72 Senior Member Join Date: Oct 2005 Location: south carolina Posts: 658	Re: 700r4 swap and driveshaft ? thanks,so the 4l60e wouldn't work at all? or could it be made to work and nobody has done it yet.Just wondering cause I could get a really good deal on this tranny and would hate to pass it up. now about the one piece drive shaft, i looked at one at the salvage yard yesterday and it was a two piece. The only reason I brought it up was because if it was connected to a 700r4 and was a long bed would it fit, be to long, or would it even bolt up at all? thoughts to ponder.

12-30-2005, 10:08 PM	#4
sinister72 Registered User Join Date: Apr 2002 Location: Bowling Green, kentucky Posts: 182	Re: 700r4 swap and driveshaft ? find you a good 1 piece drive shaft ,have it shortened ,less trouble in the end! __________________ 72 chevy C-10 swb fleetside,402 BB.700r4,buckets,console.etc. 72 Blazer CST 350,AT, new project 1971 Chevy Nova ,355 SB blow through turbo in works.

12-30-2005, 11:19 PM	#5
neonlarry Registered User Join Date: Feb 2002 Location: Vacaville, CA Posts: 2,746	Re: 700r4 swap and driveshaft ? Best way to tell on the drive shaft is to measure. The 4L60E will work, but by the time you get an aftermarket controller for it it won't be such a good deal anymore. __________________ 70 C/10 Light Red 350/TH350, HEI, Duals w/40 series Flows, 91 seat, LED taillights 99 Pontiac S/C GTP, SLP Ram Air hood, GMPP Konis & springs 95 Neon ACR, MP PCM, AFX UDP, 3.0 CAI

12-31-2005, 12:03 AM	#6
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Re: 700r4 swap and driveshaft ? Larry has it right. It is a computer controlled tranny, it takes all it's input from the computer. The controller you'd need would cost more than you want to spend on the whole set up. You could do a gear vendors for that much and be 10 times stronger. If you want an easy swap, get a TH200 4R. It will physicly bolt in where a TH350 was, all you need to do is move the crossmember to the TH400 spot, then get the kits needed for the TV cable and the lock up controll. Even a stock TH350 drive shaft will fit no problem.

01-01-2006, 12:27 AM	#7
roughedup72 Senior Member Join Date: Oct 2005 Location: south carolina Posts: 658	Re: 700r4 swap and driveshaft ? I thought about the 200r4 but I plan on towing a boat one day and I use the truck for hauling firewood,which is what I did today and damn I beat.

01-01-2006, 12:37 AM	#8
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Re: 700r4 swap and driveshaft ? the 700 isn't much more of a tranny than the 200, and in some ways, the 700 is weaker. Either one in stock form is OK for once in a while towing and hauling.

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