10-14-2008, 09:10 PM
I have been putting some thought into swapping out a Np435 for my stock 72 transmission. I have never swapped a transmission before so I was wondering what all needs to be done and anything special I should know.
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Tranny swap
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10-15-2008, 03:20 PM
I'm guessing your replacing a stick 3 spd? If so there is not too much to installing a NP435. I would highly suggest at least a 2" body lift. I first installed my NP without any body lift. It will go but is much more pleasant with the lift. You will also have to cut a hole in the tunnel for the shifter. I cut the entire top from my tunnel and fabricated a removable cover. Like I said before without a lift you will probably have to cut most of the tunnel top out to install, but with about 2" you can brobably get by with just a hole the size of an average shifter boot.
'72 TBA...
10-15-2008, 03:25 PM
A body lift is a MUST if you want to keep your sanity. Less body mods will be required and removal and installation is a million times easier and faster.
'77 351w- Explorer EFI, 4R70W, 4-link, lockers, 4.56, 35" MT/Rs with a severe rock addiction.
 mokin:Roads? Where we're going, we don't need roads. ![[Image: sig2.jpg]](http://i288.photobucket.com/albums/ll176/mchuzie/sig2.jpg)
10-17-2008, 08:30 AM
This swap will be the easiest upgrade to improve you "crawl" ratio and the 2nd 3rd and 4th gears basically mimic your 3 speed. The 1st gear is so low and I mean sooo low it will be great for increasing your crawl ratio. The NP435 is a really tough tranny also I have put mine through some really tough gear bangin hardcore shifting and have beat on it plenty...no problems...
mokin:I am pretty sure this is the adapter you will need...Chuck had one so he let me use it...someone chime in to make sure I'm right here... cratchhe:http://www.tomsbroncoparts.com/product.p...44&id=1073 This is a must have in order to do the swap...:xyxthumbs: http://bcbroncos.com/store/product_info....cts_id=176 :chili: :rockon: :chili:
Waiting to build or BUY another legend! :thefinger:
Always an EB fan, lover and freak :notworthy: 1985 Yoda 4Runner :xyxthumbs:
10-17-2008, 10:31 PM
The adapter is a must? its expensive as hell, thats more than the tranny itself. And as for the lift, im not too worried about comfort as this is not a daily driver and i dont mind cutting out the tunnel. Thanks for the answers guys
10-17-2008, 10:40 PM
The adapter is a must!!! :grinning:
The 6cyl. adapter also!!! :blues: The lift is more for the ease of install and being able to work on stuff...:beer: I paid $100 for my tranny and $250 for the adapter...:rubeyes: Its all worth it I promise... mokin:
Waiting to build or BUY another legend! :thefinger:
Always an EB fan, lover and freak :notworthy: 1985 Yoda 4Runner :xyxthumbs:
10-17-2008, 11:11 PM
JP is right. It is gonna cost some $$$ but it is a necessary evil.
'77 351w- Explorer EFI, 4R70W, 4-link, lockers, 4.56, 35" MT/Rs with a severe rock addiction.
mokin:Roads? Where we're going, we don't need roads.
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