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Gray Ghost · 07-16-2005, 07:41 AM

The 4L80E is a much better/stronger tranny but there are fit issues with some trucks. If you are running more than 325 ponies under the hood I wouldn't advise the swap to the 700. There are folks who claim they can be buiolt to withstand the power, but I have yet to see one handle it in the real world. You are also looking at substantially more $$$ to repair that 700 versus the 350. The last 4 spped auto I had rebuilt cost me $1600.

I've had two 4 speed trannies from the 80's era and will never touch another one. I think of 'em as the same quality as a 305....they make GREAT boat anchors.

07-16-2005, 07:41 AM	#4
Gray Ghost Senior Member Join Date: Sep 2004 Location: Terrell, TX Posts: 1,967	The 4L80E is a much better/stronger tranny but there are fit issues with some trucks. If you are running more than 325 ponies under the hood I wouldn't advise the swap to the 700. There are folks who claim they can be buiolt to withstand the power, but I have yet to see one handle it in the real world. You are also looking at substantially more $$$ to repair that 700 versus the 350. The last 4 spped auto I had rebuilt cost me $1600. I've had two 4 speed trannies from the 80's era and will never touch another one. I think of 'em as the same quality as a 305....they make GREAT boat anchors. __________________ Kelly '05 GMC Sierra SLE Z71 Bone stock except for new bed rail caps.