700r4 to 4L60 E swap - The 1947 - Present Chevrolet & GMC Truck Message Board Network

wwhijr · 08-23-2004, 04:26 PM

My 700r4 is having some problems and I am thinking about swapping it to a 4l60e. Would there be any advantage to this? How hard would the conversion be? I wouldnt think it would be a direct replacement, but i have been wrong before ( just ask my kids mom). I have heard that the 4l60 was a better tranny although I cant really complain with the service my 700r4 has given me.

***Josh*** · 08-23-2004, 05:29 PM

I would stick with the 700r4 aka 4L60 (4L60 is the technical designation of the 89+ ones, 4L60E is the designation for the electronically controlled valve body version) you have now. You can upgade but it would require new wiring/PCM and not sure what else.

jeffs98 · 08-23-2004, 09:45 PM

What is the truck priarily used for? How long did the 700 last??? What is it the complaint on the 700 now?? I build 700's all the time for people and if it has some updates put in it at the time of rebuild they are pretty dependable!! The thing that kills most 700's is either towing in od and/or not changing fluid and filter often enough!!

wwhijr · 08-24-2004, 04:41 PM

The truck is for all intents and purposes a work truck. It regularly hauls 2 to 3,000 pounds. My biggest complaint right now is the pump is dying. It is singing a death song. It still seems to operate well for a tranny with 200K+ on it. I have kept up the maintainence on it. I had heard that the 4l60 was a better trans but after Josh's post I think I will just have mine rebuilt with all the heavy duty goodies in it and keep running it.

patgizz · 08-24-2004, 08:23 PM

rebuild it, with a 13 vane pump kit, HD sun shell, good clutches and band, new thrust washers, and a towing shift correction kit, and you should be good to go. the only catastrophic 700r4 failure i ever had was the input shaft splines stripped off, but it had unknown mileage and was one of the weaker early units from 83.

08-23-2004, 04:26 PM	#1
wwhijr SUPERscrapMAN Join Date: Mar 2004 Location: Crouse, NC Posts: 326	700r4 to 4L60 E swap My 700r4 is having some problems and I am thinking about swapping it to a 4l60e. Would there be any advantage to this? How hard would the conversion be? I wouldnt think it would be a direct replacement, but i have been wrong before ( just ask my kids mom). I have heard that the 4l60 was a better tranny although I cant really complain with the service my 700r4 has given me. __________________ Christine 1987 Chevy S10 2.8l 5 speed 600k miles! still chugging along - wifes ride Old Smokey 1990 Chevy K1500 Suburban 6.2L Diesel - Banks sidewinder The WarBeast 1994 Chevy Suburban K1500 - Semi retired at 400K miles The BLueOx 1994 Chevy Suburban. K2500 454 Used on a daily basis.

08-23-2004, 05:29 PM	#2
*Josh* He's got mean nasty FANGS! Join Date: Dec 1999 Location: Rockwell, NC Posts: 6,591	I would stick with the 700r4 aka 4L60 (4L60 is the technical designation of the 89+ ones, 4L60E is the designation for the electronically controlled valve body version) you have now. You can upgade but it would require new wiring/PCM and not sure what else. __________________ 2004 K2500 Burb 1999 C3500 1985 Cutlass Supreme 1969 C-10 1967 C-10 Panel josh@67-72chevytrucks.com 6772chevycom@gmail.com

08-23-2004, 09:45 PM	#3
jeffs98 Registered User Join Date: Jun 2004 Location: Parsons, Kansas Posts: 139	Trans swap What is the truck priarily used for? How long did the 700 last??? What is it the complaint on the 700 now?? I build 700's all the time for people and if it has some updates put in it at the time of rebuild they are pretty dependable!! The thing that kills most 700's is either towing in od and/or not changing fluid and filter often enough!!

08-24-2004, 04:41 PM	#4
wwhijr SUPERscrapMAN Join Date: Mar 2004 Location: Crouse, NC Posts: 326	The truck is for all intents and purposes a work truck. It regularly hauls 2 to 3,000 pounds. My biggest complaint right now is the pump is dying. It is singing a death song. It still seems to operate well for a tranny with 200K+ on it. I have kept up the maintainence on it. I had heard that the 4l60 was a better trans but after Josh's post I think I will just have mine rebuilt with all the heavy duty goodies in it and keep running it. __________________ Christine 1987 Chevy S10 2.8l 5 speed 600k miles! still chugging along - wifes ride Old Smokey 1990 Chevy K1500 Suburban 6.2L Diesel - Banks sidewinder The WarBeast 1994 Chevy Suburban K1500 - Semi retired at 400K miles The BLueOx 1994 Chevy Suburban. K2500 454 Used on a daily basis.

08-24-2004, 08:23 PM	#5
patgizz Registered User Join Date: Oct 2002 Location: Cleveland, OH Posts: 429	rebuild it, with a 13 vane pump kit, HD sun shell, good clutches and band, new thrust washers, and a towing shift correction kit, and you should be good to go. the only catastrophic 700r4 failure i ever had was the input shaft splines stripped off, but it had unknown mileage and was one of the weaker early units from 83.



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