1991 1500 with a LB7 duramax swap

[LB7OBS]

Just decided to join the forum, I bought a 91 OBS and it was half finished, finished up some wireing and some paint to get it to where it is now, just in the process of a seat swap and stereo upgrade.

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[LB7OBS]

Everything works, new drive shafts 12 bolt diff with tire track in it 50hp gas mileage tune, I have been daily driving it since I got it, just gotta put the 4wd shifter in the floor, it’s the 5 speed Allison with the duramax manual transfer case. Just gotta get on getting more of the gauges working. Just running. A gps speedo right now and got temp and alternator readouts

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[tpass]

those certainly arent "drop in" swaps, cool ride!

 

[Drunkcanuk]

Nice! Awesome to see another Alberta ride here. Now get rid of that damn front plate holder! Lol

 

[LB7OBS]

Nice! Awesome to see another Alberta ride here. Now get rid of that damn front plate holder! Lol

Hahaha I actually just found a smoothie bumper for it at a pick and pull so that bumper will be gonzo! And thanks!!

 

[HotWheelsBurban]

Nice truck, definitely different but looks like it was always that way! Welcome to the forum!

 

[letitsnow]

Did the tunnel need to be cut up for the Allison?

 

[BNielsen]

Please post up more about the swap, I've got a 2000 K3500 I'm wanting to swap.

 

[LB7OBS]

Did the tunnel need to be cut up for the Allison?

no, it did need a 1 inch body lift but that was typical for even newer dmax trucks