Dana 21 to Dana 20 Swap

[ford4x4fun]

I was wondering if anyone has done this swap? I would be on a NP435 Tansmission. Thanks

[ford4x4fun]

Ok so no one has done this swap Does anyone know if the Dana 20 will bolt right on to the transmission adapter for a Dana 21

[jeepermc]

I don't know....If it were me I'd swap in a married 435/205 combo to replace the 21. Have you checked out adapter sites like Novak or Advance adapters to see if you can determine it there. I have a hunch it's not a common swap if it's doable at all.

[ford4x4fun]

I have tried to do some research but unfortunantly this was all I could find...

http://www.fourwheeler.com/techarticles ... index.html

[71PA_Highboy]

The best I can do for you is suggest this:

http://www.wildhorses4x4.com/product/NP ... n_Adapters

Then go with a Twin Stick shifter and you ar all done...


HTH,

Eric

[jeepermc]

But that's for putting a NP435 in an early bronco. Per the 4-wheeler article he doesn't need an adapter to go from the D21 he has to a Bronco D20. So according to that it would be easy to put an NP435 from an f100 4x4 into an early bronco just by swapping t-cases on the back of the tranny? Anyone in the early bronco world heard of that? If it's a popular swap from an F-100 4x4 into a bronco, then it would make sense that he could put a bronco case on the back of the tranny he has?

[ford4x4fun]

All this confuses me... Usually I can understand as the forum progresses, but , I think I am going to go back with the Dana 21 just wait till I find the exact replacement I need...

[71PA_Highboy]

OK.. The easy answer...

Find a Bronco guy selling a 435/d20 combo (www.broncofix.com or www.classicbroncos.com) and swap the whole shooting match into your truck...

No muss, no fuss, and you know it works...

But feel free to ask questions.... more than happy to answer from the bronco side...

r/

Eric

[jeepermc]

Sorry...What is it that is confusing? I always make sense to myself but........that's not always the case for others.

Like said above- The easy answer is to find a setup already complete. Cheaper yet would be a NP435/NP205 combo from a later model F-150..(77-79 comes to mind) and swap that into place.

[ford4x4fun]

Ok tracking... Whole Setup... One big swap... I will definantly look into that as well. I am unconfused now Thanks guys appriciate the advice!

[jeepermc]

And the hard question: Can you bolt a bronco D20 in place of a D21? Still hasn't been answered definitively.

[71PA_Highboy]

I am going to leave you in suspense, and let you figure out the answer...

http://www.broncoii4x4.com/dana20-21/dana20-dana21.php

http://web.archive.org/web/200112190012 ... hoto4.html


took a while to find friends that knew the answer....

hth,

eric

[ford4x4fun]

I will have to check those links out when I get out of work, The military has them blocked. But look forward to reading them

[ford4x4fun]

Well I found a lead on a Dana 21 think I will just install one of those back into my Old Truck... I still have to read those other threads though Thanks for you help Guys!!!

[jeepermc]

Did you break the 21?