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4l85e upgrade issues
This is after moving the engine crossmember and motor mounts forward 3 3/4 inches. I will still have to deal with the 1 1/4 inch at the transfer case.- Keister101
- Post #11
- Forum: Introduction
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K
4l85e upgrade issues
So, the 4L85e is 5 inches longer than the TH350/TH400. For anyone wanting to do this upgrade to their K5, you will have to move the motor mounts forward. On the passenger side of the frame there is another set of bolt holes that are 3 3/4 inches forward of the factory motor mount bolt holes but...- Keister101
- Post #10
- Forum: Introduction
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K
4l85e upgrade issues
The crossmember also appears to be 2 inches below the frame rails for the driveshaft angle to be close to the rear axle yoke- Keister101
- Post #8
- Forum: Introduction
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K
4l85e upgrade issues
I think you’re onto something with the fuel tank being insi the frame rails as opposed to the outside- Keister101
- Post #7
- Forum: Introduction
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K
4l85e upgrade issues
Sorry will add pics soon. The truck had a TH350 with the NP205. I added 4L85e with the advanced adapters kit for the NP 205 to mate. The only crossmember bolts to the base of the 205 faceplate and to each side of the frame rail. The 4L85e is approximately 4 1/2 to 5 inches longer than the TH350...- Keister101
- Post #5
- Forum: Introduction
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K
4l85e upgrade issues
Sorry, has NP205 already upgraded to match the new transmission- Keister101
- Post #2
- Forum: Introduction
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K
4l85e upgrade issues
1980 K5 Blazer 4x4. I have upgraded the engine to a 383 stroker with 460 to 480 horsepower and torque. The current upgrade is adding the 4L85e transmission and finding fitment issues with the crossmember not being long enough across due to extra transmission length. Any ideas appreciated as I’m...- Keister101
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- Replies: 10
- Forum: Introduction
