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Thoughts....

Magikal

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L29/4l80e (2wd model)/241c left me with needing a 3"spacer at the adapter. Does this sound correct???

20160817_210103.jpg
 
4L80E/NP24x or 4L80E/205 adaptor should work with no spacer? What adaptor is that?
 
4L80E/NP24x or 4L80E/205 adaptor should work with no spacer? What adaptor is that?


Adapter came with the 241c. Was attached to TH400. Bought it specifically cause it has 32 spline input. My tranny is 2wd version with 6" of shaft stick out.
 
Hmmm and it's not fully splined. That adaptor will only work on a 4wd trans. I am not sure what the solution is. New tailshaft or have a spacer made. I don't know of any adaptors that are that long with the 6 bolt round to 6 bolt pattern.
 
Some ford junk had lengthy adapters, but generally speaking a 2WD tran has a different tailshaft than a 4WD trans. Personally, i would try and make it work.front d shaft angles can be a b**** and the longer the front shaft the better.
 
Ok, working on a very limited budget has devised the following solution. Having a 241/400 adapter and also a 208/700r4 adapter (both appear identical) it suddenly clicked, why can't I attach one adapter to the other adapter by drilling a few holes and bolting the two together? They index together just fine. With what I Hagee, the extra adapter measures 2.75" leaving me with just .25" plus some play to account for. I see no reason why I couldn't remove that small amount from the tall shaft with a cut off wheel.
Anybody see any obvious reason why this wouldn't work?

20160906_175440.jpg
 
My buddy did something similar. He took a 2wd turbo 400 and mated it to an np205 that came off his turbo 350. He made an adapter/spacer out of some steel plate and silicone it together and cut the splines down to the length he needed with a cut off wheel.
 
I've seen some crude but effective adapters made from heavy walled pipe and a few slabs of 1/4" or 5/16" flat plate --they made the plates bolt up to the transmission tail and the transfer case (by tracing the bolt patterns and shape of the original adapter and tailshaft housing
),then the trans and T-case were bolted to the engine and crossmember, to determine the length of the pipe,and it was cut to size with a pipe cutter to keep it square,and tack welded in place to the plates--then taken off, and fully welded on the bench vise ,holding the parts in line ,all the way around..

One guy I know did this when he made a tractor using the drivetrain from a chevy 4x4,after another friend saw what he did,he adapted a 2wd TH400 into his pickup the same way and it worked very well..he already had the transmission,and a NP-208 T-case with the 32 spline input..
 
I've seen some crude but effective adapters made from heavy walled pipe and a few slabs of 1/4" or 5/16" flat plate --they made the plates bolt up to the transmission tail and the transfer case (by tracing the bolt patterns and shape of the original adapter and tailshaft housing
),then the trans and T-case were bolted to the engine and crossmember, to determine the length of the pipe,and it was cut to size with a pipe cutter to keep it square,and tack welded in place to the plates--then taken off, and fully welded on the bench vise ,holding the parts in line ,all the way around..

One guy I know did this when he made a tractor using the drivetrain from a chevy 4x4,after another friend saw what he did,he adapted a 2wd TH400 into his pickup the same way and it worked very well..he already had the transmission,and a NP-208 T-case with the 32 spline input..

I was considering doing exactly that but was worried about keeping everything concentric and indexed properly. Somewhere along the way it dawned on me that another adapter has all the details I was shooting for so why not just use another adapter. I think it will work just fine. Probably put a crossmember at both tranny and tcase to support the weight due to the length.
 
I think divorced transfer cases are still the best as far as ease of using "any" transmission in front of them,manual or automatic--all you need is a short driveshaft with the right u-joints and your done..in a K5 there is not much room for extra length,but in a pickup,especially a long bed,its not a big deal..
I've seen a divorced NP-205 hooked to a TH350 2wd tranny by using a CV yoke off a front driveshaft before,in an off road buggy..
 

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