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Old 04-24-2013, 09:26 AM   #1
Dale99
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Q on adapter

I'm working on removing the incorrect broken np203 from my rig and putting a correct/working np205 in that came from a 73/74 model. my trans is a th350

I picked up a 205 and luckily it has an adapter. Sadly, after I found a shifter and bolt, I found out the holes were stripped.

I first thought about doing a heli-coil fix. The kit is fairly expensive, plus I dont have a drill to handle the bit I would need.

Looked at a new one from summit. All I have to say is

Slightly hunted for some used adapters. I am finding a wide variation on these and not sure whats what, so I'm wanting some help here on making sure I get the right one.

I'm wanting to know what year(s) these options where around.

I know there were two bolt sizes used. 1/2 or 9/16.
There is a figure 8 pattern, and round pattern.
Any other things I need to be aware of?
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Last edited by Dale99; 04-24-2013 at 09:33 AM.
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Old 04-24-2013, 10:35 AM   #2
Dale99
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Re: Q on adapter

ok, so it appears there is an adapter with bearing, or adapter with seal.
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Old 04-24-2013, 11:40 AM   #3
D.PASSMORE
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Re: Q on adapter

Try looking on ebay and then put WTB on the parts board. The TB 350/NP 205 adapter usually runs around $75 / $150 used. Also start calling Junk yards - these adapter were used from early 70's to late 70's in K5, K10 and K20's.

Plus research on line...
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Old 04-24-2013, 01:27 PM   #4
Dale99
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Re: Q on adapter

Ive found some, I just want to figure out the differences so when I buy I know its the right one. Ive bought many parts for this truck to get them and find out they are wrong. Then have problems selling at a loss... if they sell.
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Old 04-24-2013, 07:18 PM   #5
obijuan
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Re: Q on adapter

just design changes. the last one was 1980 for the 27 spline.

i have two seal style adapters. pretty sure they are later style, not sure when because the tags on the 205 were gone. wish i could help more. wither one will work fine, just get the corresponding coupler style.
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Old 04-24-2013, 08:33 PM   #6
Dale99
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Re: Q on adapter

Will a "bearing" style adapter work on a "seal" style coupler?
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Old 04-24-2013, 09:00 PM   #7
obijuan
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Re: Q on adapter

its been a while since ive seen them beside each other, pretty sure they dont but cant remember why.
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Old 04-24-2013, 09:32 PM   #8
Dale99
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Re: Q on adapter

Thanks. Just bought one off evil bay and comes with coupler, mounts, bolts, and whole bunch of stuff. Hopefully I can make it all work.
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