6 Speed Automatic Options? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Yukon 400 · 10-26-2010, 11:35 PM

I was looking into some options of 6 speed automatic transmissions for a 3/4 ton suburban. I was looking at the TCI 6 speed 4L80e, 6L80/90e or an Allison 1000. Out of the options it seems that the TCI tranny is the easiest to work with for transplants coming in a complete package, which comes at a high cost. The Allison or GM ones would involve more work in getting the electronics to work.

Does any one have any experience with using one of these transmissions in trucks of this era along with an non-computerized engine?

10-26-2010, 11:35 PM	#1
Yukon 400 Registered User Join Date: Oct 2010 Location: Las Vegas, NV Posts: 68	6 Speed Automatic Options? I was looking into some options of 6 speed automatic transmissions for a 3/4 ton suburban. I was looking at the TCI 6 speed 4L80e, 6L80/90e or an Allison 1000. Out of the options it seems that the TCI tranny is the easiest to work with for transplants coming in a complete package, which comes at a high cost. The Allison or GM ones would involve more work in getting the electronics to work. Does any one have any experience with using one of these transmissions in trucks of this era along with an non-computerized engine?



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