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#1 |
Senior Member
![]() Join Date: Apr 2016
Location: Indiana
Posts: 211
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Np241 transfer case
I plan on doing a 5.3L/4l60e swap in my 70 k5. My current plan is to pick up a passenger drop np241. Has anyone done this in a k5 - I've seen several projects online showing this combo in trucks but haven't located a 1st gen k5 build with the 241.
The reason I'm thinking the 241 is best for me: My k5 came with a Dana 20 tcase and there are no adapters for it. The 241 can be had much cheaper than getting a 205 and an adapter. Lastly the 241 will bolt directly to the 4l60 with factory adapter as long as the input shaft spline count is correct. |
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#2 |
Senior Member
![]() Join Date: Apr 2016
Location: Indiana
Posts: 211
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Re: Np241 transfer case
Found a build:
http://67-72chevytrucks.com/vboard/s...d.php?t=663021 |
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#3 | |
Senior Member
![]() Join Date: Nov 2013
Location: East Tennessee
Posts: 2,148
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Re: Np241 transfer case
Quote:
I can get you the part # if you want...they come on ebay pretty often..you will need to be sure the spline count is correct.
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1967 C10 Step side 1968 C10 Step side 1970 Chevrolet K/5 Blazer 1972 Chevrolet K/5 Blazer ............. ![]() |
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#4 | |
Senior Member
![]() Join Date: Apr 2016
Location: Indiana
Posts: 211
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Re: Np241 transfer case
Quote:
I haven't had a chance to read your entire thread - what crossmember did you use for your trans/transfer case? I found a 241 on Craigslist from a 91 suburban and I'm wondering if I should also get the crossmember while I'm at it - guys parting out the entire truck. I already plan on getting the shifter and everything that goes with it. The suburban has a 700r4 from what I read it has the same 27 spline output shaft as the 4l60e. Thanks for your help - I'm sure I'll be bugging you with more questions! |
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#5 |
Registered User
Join Date: Mar 2007
Location: Oregon City
Posts: 228
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Re: Np241 transfer case
I used a 241 passenger drop mated to a L92/6l80. It bolted right up, I didn't need adapters.
Here's a link to the build, I do not remember how much I covered on the 241 install. http://67-72chevytrucks.com/vboard/s...d.php?t=615744
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1972 Blazer build: http://67-72chevytrucks.com/vboard/s...d.php?t=615744 |
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#6 | |
Senior Member
![]() Join Date: Nov 2013
Location: East Tennessee
Posts: 2,148
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Re: Np241 transfer case
Quote:
this is your picture......it looks like there's a short adapter in there...?
__________________
1967 C10 Step side 1968 C10 Step side 1970 Chevrolet K/5 Blazer 1972 Chevrolet K/5 Blazer ............. ![]() |
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#7 |
Senior Member
![]() Join Date: Nov 2013
Location: East Tennessee
Posts: 2,148
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Re: Np241 transfer case
here is the correct adapter for the 4L60E to NP241
__________________
1967 C10 Step side 1968 C10 Step side 1970 Chevrolet K/5 Blazer 1972 Chevrolet K/5 Blazer ............. ![]() |
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#8 |
Registered User
Join Date: Jun 2013
Location: Somewhere
Posts: 3,077
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Re: Np241 transfer case
Why don't you like the NP205? I think you can get an adaptor plate to mate the figure 8 to the 32 spline trans. You'd need a new 32 spline input to the 205 though... I'd guess the cost difference is not mush but the 205 is a superior TC. The 241 has a 2.6 low (if I recall righ) so that may be the thing.
Edit: on a 70 I guess it may not be a 205... |
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