69 K20 NV4500 Converstion Questions - The 1947 - Present Chevrolet & GMC Truck Message Board Network

The Youngen · 12-30-2014, 12:24 PM

I'm using the NP208 since it is lighter, has a better low range ratio and bolted right up with no modifications. The NP205 would require a lot of modification.

After more research, i decided against the transfer-case mount.

Thanks SunSoaked for the pictures and advice! After looking at your thread, I decided to use the stock 69 cross-member, 95 transmission mount and shim the difference. I'm going to use the factory motor mount positions since it will be better for weight distribution.

I'm not overly concerned about the strength of the NP208 since the engine will only be outputting 150 HP and 250 FtLb at best. Plus, only 1 out of a 500 miles will actually be in 4x4.

12-30-2014, 12:24 PM	#8
The Youngen Registered User Join Date: Oct 2010 Location: Westbrook CT Posts: 81	Re: 69 K20 NV4500 Converstion Questions I'm using the NP208 since it is lighter, has a better low range ratio and bolted right up with no modifications. The NP205 would require a lot of modification. After more research, i decided against the transfer-case mount. Thanks SunSoaked for the pictures and advice! After looking at your thread, I decided to use the stock 69 cross-member, 95 transmission mount and shim the difference. I'm going to use the factory motor mount positions since it will be better for weight distribution. I'm not overly concerned about the strength of the NP208 since the engine will only be outputting 150 HP and 250 FtLb at best. Plus, only 1 out of a 500 miles will actually be in 4x4. __________________ 71 Chevy C10 350/TH350 71 GMC C20 350 (donor truck) 82 Chevy K20 Suburban 6.2/TH400/NP 95 Chevy 4x4 1500 Tahoe 6.5T/4L80E 04 Chevy 4x4 3500 Silverado 6.6T Duramax/Allison 1000 (work truck) 09 Chevy Aveo 1.6L/5 speed manual



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