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			03-13-2008, 07:33 PM
			
			
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				Rebuild or Drop in?
			 
			 
			
		
		
		
			
			Do you guys think it'll be cheaper to rebuild a 4L60E to hold some big power or just buy another built trans (brand new) and drop it in?...
		 
		
		
		
		
		
		
			
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			03-13-2008, 09:40 PM
			
			
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			#2
			
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			Cheaper now, or cheaper when you have to pull it out again and ship it back after it blows up?
		 
		
		
		
		
		
		
			
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			03-14-2008, 12:06 PM
			
			
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			#3
			
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			4L60's are tough from what I've been told.  There are certain critical high stress parts that they don't make a stronger aftermarket version of so either way it's tough to build them up to handle lots of power.  I have no personal experience pulling one apart but that's what I was told my 2 different trans builders when I blew the 4L60 in my pickup.  That being said you may want to just look into a stock GM replacement with a warranty or have yours rebuild with upgraded clutches and so forth but know that there are still weak points that can't be addressed at this time.
		 
		
		
		
		
		
		
			
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			03-24-2008, 03:46 PM
			
			
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			Ok, well does anyone know of the easiest replacement trans I can bolt up to an LS1 and that can handle a ton of power?  I know some tranny's are a PITA to install...
		 
		
		
		
		
		
		
			
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			03-24-2008, 05:31 PM
			
			
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			#5
			
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	Quote: 
	
	
		
			
				
					Originally Posted by  HardcoreZ28
					 
				 
				4L60's are tough from what I've been told.  There are certain critical high stress parts that they don't make a stronger aftermarket version of so either way it's tough to build them up to handle lots of power.  I have no personal experience pulling one apart but that's what I was told my 2 different trans builders when I blew the 4L60 in my pickup.  That being said you may want to just look into a stock GM replacement with a warranty or have yours rebuild with upgraded clutches and so forth but know that there are still weak points that can't be addressed at this time. 
			
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 actually, these trans need a lot to get them to hold up compared to what other trans take. Look up on ls1tech, lots of people do a 4L80E conversion.
		  
		
		
		
		
		
		
			
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			03-25-2008, 04:19 PM
			
			
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			#6
			
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			4L80E = 4L60E w/ different internals?
		 
		
		
		
		
		
		
			
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			03-25-2008, 05:45 PM
			
			
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			#7
			
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			 Ayatollah of Rock N Rolla / Admin 
			
						
			
			
				
			
			
				 
                                        
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					Originally Posted by  Mike Something
					 
				 
				4L80E = 4L60E w/ different internals? 
			
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 No.
 
4L65-E is a version of the 4L60-E with better internals.
 
4L60-E is an electronic derivative of the old TH350.  
4L80-E is an electronic derivative of the old TH400. Stronger but heavier. 
 
First gear in a 4L60-E is 3.06. First gear in a 4L80-E is 2.48.
		  
		
		
		
		
		
		
			
		
		
		
		
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			03-25-2008, 08:49 PM
			
			
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			#8
			
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			4L60E is just an electronic version of the 700R4 they both share most of the same internal parts.. 
Plan on spending around $2000 for a 4L60E rebuild that is what mine cost  but it came with a gaurantee for aslong as I own the car.. 
I weighed the pro's and con's of doing the 4l80e swap but you will have to get a new Torque converter along with a few other things..
		 
		
		
		
		
		
		
			
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			03-29-2008, 12:47 PM
			
			
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			#9
			
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			$2000.00 for a rebuild?  How many horses is rated for?  And where did you get it done at?
		 
		
		
		
		
		
		
			
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