8km3g-3097806825@sale.craigslist.org
Does this appear to be the correct Np 435 for a bronco swap.
If so how intensive is the swap?
NP 435
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Northpark70
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- Gunnibronco
- Official CCB Member

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Re: NP 435
I never quite got to grips with what vehicles the right NP435s came out of. I think mine came from a vehicle that wasn't "on the list".
The important thing is that it is a 28 spline output shaft.
There are two bolt patterns for the t-case/tranny mount. "A" shaped and "square". Adapters are available for both, but you should do more research, I put mine in over 10 years ago, and I don't remember much of what I read then.
Mine was from a 69? F150 4x4 w/28 spline & A shaped bolt pattern. But, according to this:
http://classicbroncos.com/tech/np435-4- ... sion-guide
it shouldn't have had a 28 spline output shaft, but it did.
You'll need your 3 speed bellhousing, the FE block bellhousing won't work on a 302.
The important thing is that it is a 28 spline output shaft.
There are two bolt patterns for the t-case/tranny mount. "A" shaped and "square". Adapters are available for both, but you should do more research, I put mine in over 10 years ago, and I don't remember much of what I read then.
Mine was from a 69? F150 4x4 w/28 spline & A shaped bolt pattern. But, according to this:
http://classicbroncos.com/tech/np435-4- ... sion-guide
it shouldn't have had a 28 spline output shaft, but it did.
You'll need your 3 speed bellhousing, the FE block bellhousing won't work on a 302.
"America is at that awkward stage. It's too late to work within the system, but too early to shoot the bastards." ΓÇô Claire Wolfe
74-AWB 98", ZF5, Atlas4, HP609s, ARBs, 37's, 3.5" lift-5.5" front coil springs, Tahoe rear springs, EFI 302, h-boost, 4x4x2 hyrdo assist, custom dash & gauges
72 U15- Explorer Sport-Candyapple Red (1 of 141)
74-AWB 98", ZF5, Atlas4, HP609s, ARBs, 37's, 3.5" lift-5.5" front coil springs, Tahoe rear springs, EFI 302, h-boost, 4x4x2 hyrdo assist, custom dash & gauges
72 U15- Explorer Sport-Candyapple Red (1 of 141)
- sbolt19
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Re: NP 435
You also need the adapter plate & the 6 cylinder intermediate housing if I remember right. But you definitely need the square bolt pattern. Like Gunni, I did mine well over 10 years ago, but you have to get one out of a 2wd truck because the output shaft on a 4x4 is longer and would have to be swapped out. Doable, but easier if you are able to find the 2wd version.
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Palmer72bronco
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Re: NP 435
i have two sitting at my parents house. on out of a late 77 f250 with mated t case and one out of a 76 f250 with divorced set up if you want to come look at them or if they will work
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66Crawler
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Re: NP 435
I just got an extra adapter and 6 cyl housing for this swap if you are interested.
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68 Mall Crawler (someday)
68 Mall Crawler (someday)