Re: GMC Truck Transmission question

Posted by Brokenwrench on February 04, 2005 at 08:55:13 from (69.128.196.191):

In Reply to: Re: GMC Truck Transmission question posted by Allan in NE on February 03, 2005 at 15:48:52:

Allan, your right. The 4L80 & 4L80E are the same trans. Gm started running it in 91, made minimal changes to it til 97-98, when they revamped the lube system. Before then the only OD option in the 3/4 ton was the 700R4. Most heavier applications still ran the 400. As you know the 4L80/E is basically built off the 400. The working theory up to the OD section is pretty much the same. BTY you have my curiousity peeked over the bullitin giving 3.9 hrs to replace the rear ring gear. Does this include R&R? Even if it doesn't, that's a pretty tall order. Then I wonder, if it was a recall, why didn't GM recall the 400's as well. With some exceptions the the parts in the back end interchange. Just wondering, that's all Brokenwrench

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• Re: GMC Truck Transmission question Allan in NE 09:53:42 02/04/05 (0)

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