The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Is there budget friendly 4 speed auto conversion?

GRADYS Performance · 06-19-2017, 12:41 PM

Yes, the 700R4 can be upgraded but still not near the strength of the TH400/4L80E series of transmissions. A 700R4/4L60 transmission is comparable to a TH350 transmission in strength.

With the load you are carrying a 700R4/4L60 transmission would be marginal in durability and longevity even with all the upgrades available for it.

06-19-2017, 12:41 PM	#9
GRADYS Performance Registered User Join Date: Dec 2013 Location: Columbus, Oh Posts: 367	Re: Is there budget friendly 4 speed auto conversion? Yes, the 700R4 can be upgraded but still not near the strength of the TH400/4L80E series of transmissions. A 700R4/4L60 transmission is comparable to a TH350 transmission in strength. With the load you are carrying a 700R4/4L60 transmission would be marginal in durability and longevity even with all the upgrades available for it.