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The Dieselfication of Coach 1046
Author: BigRabbitMan (Show all albums)

This album is dedicated to following the process of Coach #1046 being converted from a 1976 Chrysler 440-I with a 4spd Allison AT540 transmission to a 2006 GMC Duramax LBZ turbo diesel with a 6spd Allison 1000 double overdrive transmission. There is a companion discussion thread in the Mechanic's Corner section of the Forum area of this site.
Show Newest Photos First | Show Oldest Photos First379 Photos - Page : [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] [25] [26] [27] [28] [29] [30] [31] [32]


This is the coupler that goes on the end of the transmission shaft. These four bolts attach the parking brake drum and U-joint flange to the transmision shaft.

And here is the transmission on the workbench at the Allison dealer. Note that it is attached to the tech's workbench by removing one of the side covers for the attachment point for a power takeoff or other attachment.

Here is another view. I have also had the transmision pan changed to the deep pan for greater fluid capacity. That provides a larger heat sink for heat surges.

With the rear housing change, the transmission mount bracket also needed to change. Here is the correct one for the new setup.


The engine and transmission have been temporarily positioned under the tail end of the coach.

Another view and .....

..... another view.

(2 Comments)
Here you can see the hole where the transmision will slide into. If you look closely at the tail end of the transmission, you can see the slightly rusty parking brake actuation lever between the brake drum and the rear housing.


Suprise!!! We now move to the other end of the coach and inside to boot! This is the center section of the current dash. As part of the conversion, the dash cluster is also being moved over so that full instrumentation is available and functioning.

Four screws and the center section simply comes out. All of the wires are still attached as you can see at the bottom of the picture.

(3 Comments)
This is the initial test fitting of the GMC dash cluster to the space in the center of the FMC dash. Notice that the colors almost match! The cluster will just barely fit. I will need to trim the edges of the cluster and open up the hole in the dash as well, but there is a 1/4 inch on each side remaining between the air vents and the cluster so all is good!

And here we are back outside. Eric is working on getting the dash portion of the electrical harness out of the donor.
Show Newest Photos First | Show Oldest Photos First379 Photos - Page : [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] [25] [26] [27] [28] [29] [30] [31] [32]

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