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View Poll Results: How should a np205 be supported behind a manual transmission?
factory - side cushioned mount 8 47.06%
No extra support - hangs from adaptor 8 47.06%
Mounted solid - angle iron to frame or additional crossmember 0 0%
After market - cushioned to frame or additional crossmember 1 5.88%
Voters: 17. You may not vote on this poll

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Old 03-19-2013, 04:15 PM   #1
eric67m
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Np205 supporting opinions - manual transmission

It seems there are for main opinions when it comes to supporting a Np205 behind a manual transmission. What is the best way to not break the adaptor?

Please fill out the poll.

1. factory - cushioned side mount.

2. No support - hangs from transmission adaptor.

3. Mounted rigid to frame or aftermarket crossmember.

4. Aftermarket cushioned mount to frame or aftermarket crossmember.


I have a 67 k20 with a sm465 / np205. My adaptor was broken when I got it and had no support. I do not want it to break again.
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Old 03-19-2013, 04:51 PM   #2
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Re: Np205 supporting opinions - manual transmission

#1,just get it back how it was made.
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Old 03-19-2013, 06:08 PM   #3
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Re: Np205 supporting opinions - manual transmission

Here we go with this topic again...
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Old 03-20-2013, 04:49 PM   #4
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Re: Np205 supporting opinions - manual transmission

Haha, true.

All I can say is that if you want to rigidly mount/constrain the powertrain to the frame, then make sure the frame doesn't bend or twist.
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Old 03-20-2013, 05:31 PM   #5
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Re: Np205 supporting opinions - manual transmission

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1972 K5 Blazer CST, Turquoise
1966 K20 Short Fleet Pickup, Big Ugly
1964 C10 Short Fleet, Gertrude

2001 Porsche 911 Carrera
1996 Ford Bronco XLT
1980 Jeep Wagoneer

2008 Honda CBR1000RR
2005 Honda RC51
1981 Honda CB750C


No dis-assemble Johnny Five! No dis-assemble!

Last edited by argonaut; 03-20-2013 at 05:32 PM. Reason: Double post.
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Old 03-22-2013, 08:15 PM   #6
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Re: Np205 supporting opinions - manual transmission

Thank you for your replies.

Do peoples opinions vary with their use, ie, on road versus off road?

What types of factory mounts existed and in what years.

Did square bodies come without a side mount?

Was their a torsion bar mount in newer models that went up to the engine mount from the side of the transfer case?
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Old 03-22-2013, 09:18 PM   #7
RANDY COX
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Re: Np205 supporting opinions - manual transmission

HHHmmm it's missing on mine,it was like that when I got it..guess I'll run it like that to see what happens.but will be a while b4 on road....
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Old 03-23-2013, 09:12 AM   #8
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Re: Np205 supporting opinions - manual transmission

My old 76 Blazer had 2 bolts on the bottom of the adapter to the crossmember. No other bracing. Never broke the mount or adapter. Truck had a 400+ HP sb400 hooked to a 4spd. Bent the frame at the front from torque and tore up axles/driveshafts. No transfer case issues. Even bent the floor board with the shifter from the engine torqueing over!.
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Old 03-23-2013, 04:27 PM   #9
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Re: Np205 supporting opinions - manual transmission

About half way down this page there are two pictures of a mount that goes up to the engine mount. Does this style work well? What did they come on? How did they mount to the engine mount?

http://www.greatlakes4x4.com/showthread.php?t=185605
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Old 03-24-2013, 12:26 PM   #10
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Re: Np205 supporting opinions - manual transmission

those go up to a bellhousing bolt. ive seen them on my square bodies mostly the aluminum tcase years. . you gotta make sure your tcase has the holes drilled and tapped on the sides. it helps from bottoming out the driveshaft and breaking the tcase off. they rarely seem to make it back on ive noticed.
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