Np208 married to an sm465? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

4x4K10 · 05-16-2014, 04:03 PM

Found an sm465 thats attached to an np208. My 85 k10 has the 700r4/208 setup currently. The 465 in an 87 blazer with the hydraulic clutch. My question is if i were to get everything i need for the auto to manual swap can i use the 208 from my 700r4 and attach that to the 465 or do i need to get the t case along with the tranny? Thanks guys.

mrolds88 · 05-16-2014, 04:18 PM

Someone else may need to chime in, but I believe that they used different input shaft spline counts in the autos and the manuals.

mongoose · 05-16-2014, 04:27 PM

ive been looking for a set up for a project what ive read is the 350/700 is 27 and the 465/400 is 32 spline.

4x4K10 · 05-16-2014, 06:23 PM

Thanks a lot guys, i will have to just buy the tcase with the tranny. now my next question would be can i use my current drive shafts with this transmission? i know the 465/205 is shorter so i would need longer drive shafts but is that the case with the 208 also?

mrolds88 · 05-16-2014, 09:34 PM

You may be able to use your driveshaft's. I am pretty sure the adapter for the 465 is longer than the 700's. Measure from the block to the back of your transfer case before you go to pull everything.

4x4K10 · 05-17-2014, 06:36 PM

Well i went and pulled everything today. Got the driveshafts just to be safe. And its a hydraulic setup, which will be very nice.

05-16-2014, 04:03 PM	#1
4x4K10 Registered User Join Date: Apr 2013 Location: New York Posts: 24	Np208 married to an sm465? Found an sm465 thats attached to an np208. My 85 k10 has the 700r4/208 setup currently. The 465 in an 87 blazer with the hydraulic clutch. My question is if i were to get everything i need for the auto to manual swap can i use the 208 from my 700r4 and attach that to the 465 or do i need to get the t case along with the tranny? Thanks guys.

05-16-2014, 04:18 PM	#2
mrolds88 Registered User Join Date: Jul 2011 Location: WV Posts: 946	Re: Np208 married to an sm465? Someone else may need to chime in, but I believe that they used different input shaft spline counts in the autos and the manuals. __________________ 72 GMC C2500 402/Th400 first truck (still have) 77 GMC C3500 CC dually Sold 70 C50 dump truck "Rusty" 87 K10 Suburban Sold 93 K2500 xcab 6.5TD 96 GMC K2500 Suburban 6.5 TD

05-16-2014, 04:27 PM	#3
mongoose Registered User Join Date: Feb 2009 Location: slurrey, bc. Posts: 1,134	Re: Np208 married to an sm465? ive been looking for a set up for a project what ive read is the 350/700 is 27 and the 465/400 is 32 spline. __________________ -'73 c/10 - Low with Go - will be complete... probably never. -'90 2wd Blazer - well... soon enough anyways. -'84 SWB - the daily gas guzzler.

05-16-2014, 06:23 PM	#4
4x4K10 Registered User Join Date: Apr 2013 Location: New York Posts: 24	Re: Np208 married to an sm465? Thanks a lot guys, i will have to just buy the tcase with the tranny. now my next question would be can i use my current drive shafts with this transmission? i know the 465/205 is shorter so i would need longer drive shafts but is that the case with the 208 also?

05-16-2014, 09:34 PM	#5
mrolds88 Registered User Join Date: Jul 2011 Location: WV Posts: 946	Re: Np208 married to an sm465? You may be able to use your driveshaft's. I am pretty sure the adapter for the 465 is longer than the 700's. Measure from the block to the back of your transfer case before you go to pull everything. __________________ 72 GMC C2500 402/Th400 first truck (still have) 77 GMC C3500 CC dually Sold 70 C50 dump truck "Rusty" 87 K10 Suburban Sold 93 K2500 xcab 6.5TD 96 GMC K2500 Suburban 6.5 TD

05-17-2014, 06:36 PM	#6
4x4K10 Registered User Join Date: Apr 2013 Location: New York Posts: 24	Re: Np208 married to an sm465? Well i went and pulled everything today. Got the driveshafts just to be safe. And its a hydraulic setup, which will be very nice.



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