1962 K20 SM465 NP205 swap - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Dizzy 1 · 10-27-2017, 04:15 PM

I am putting a late model SM465 32 spline output shaft long adapter and long input shaft synchronized NP 205 in my 1962 K20. Any help on what crossmember I should use would be greatly appreciated.
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franken · 10-27-2017, 09:13 PM

I'd say the existing CM, or the one that belongs w/ the new parts. 67-72 shared frame width w/ 73-87 and I'm pretty sure 60-66 was also the same. 32" comes to mind.
Depending on your engine and rear gear, you might think about an NV4500, which that NP205 should almost bolt to.

10-27-2017, 04:15 PM	#1
Dizzy 1 Registered User Join Date: Sep 2017 Location: Redding Ca Posts: 11	1962 K20 SM465 NP205 swap I am putting a late model SM465 32 spline output shaft long adapter and long input shaft synchronized NP 205 in my 1962 K20. Any help on what crossmember I should use would be greatly appreciated. Posted via Mobile Device

10-27-2017, 09:13 PM	#2
franken Registered User Join Date: Jun 2013 Location: Somewhere Posts: 3,128	Re: 1962 K20 SM465 NP205 swap I'd say the existing CM, or the one that belongs w/ the new parts. 67-72 shared frame width w/ 73-87 and I'm pretty sure 60-66 was also the same. 32" comes to mind. Depending on your engine and rear gear, you might think about an NV4500, which that NP205 should almost bolt to.



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