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PostPosted: Wed Nov 11, 2020 8:37 am 
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Joined: Tue Nov 10, 2020 6:07 pm
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Car Model: 1970 D100 Utiline, 225; 1966 Polara, 383
Hello all,
I have a 1970 D-100 with a 225 and an A250 transmission. I had a lot of vibration and noted some leaking from the tailshaft, so I pulled it to replace the bushing and seal. When I pulled the tailshaft, I found broken pieces of the snap ring that goes around the shaft at the main shaft bearing. Everything inside the transmission looks ok, and it was shifting ok, so my intent is to just replace the snap ring, bushing, and seal, and put it back together. However, the shaft has slid in the bearing, so, the exposed groove is not wide enough to put a new snap ring in. Part of the groove is underneath the center part of the bearing. Has anyone else experienced this before? Is there a trick that will allow me to get a new snap ring on without having to take the whole transmission apart and find somebody with a press? I really know very little about transmissions and most transmission shops around here don't want to mess with manuals, especially old ones.

Thanks,
Morgan


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PostPosted: Thu Nov 12, 2020 5:08 am 
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Supercharged
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Joined: Sat Nov 27, 2004 8:03 pm
Posts: 6904
Location: IRWIN PA
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Where are you located?

your handle says you are a hokie fan..

There is a prominent and knowledgeable forum member in Blacksburg..

Greg

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PostPosted: Thu Nov 12, 2020 7:50 pm 
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1 BBL (New)

Joined: Tue Nov 10, 2020 6:07 pm
Posts: 4
Car Model: 1970 D100 Utiline, 225; 1966 Polara, 383
Greg,
I am in Roanoke, so not far from Blacksburg at all.

Thanks,
Morgan


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PostPosted: Mon Dec 28, 2020 7:30 pm 
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Joined: Sat Oct 12, 2002 11:22 am
Posts: 3699
Location: Sonoma, Calif.
Car Model: Many Darts and a Dacuda
Try selecting 2nd gear and watch to see if doing that pushes the main shaft slightly rearward.
If so, have someone hold the shifter / shift lever to keep rearward force on the shaft while you carefully tap the inner bearing race forward to uncover the groove.
DD


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PostPosted: Tue Dec 29, 2020 3:33 pm 
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1 BBL (New)

Joined: Tue Nov 10, 2020 6:07 pm
Posts: 4
Car Model: 1970 D100 Utiline, 225; 1966 Polara, 383
Thanks Doctor Dodge,
I'll give that a try when I get a chance and see if that does it.

Thanks,
Morgan


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PostPosted: Thu Apr 08, 2021 7:18 pm 
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1 BBL (New)

Joined: Tue Nov 10, 2020 6:07 pm
Posts: 4
Car Model: 1970 D100 Utiline, 225; 1966 Polara, 383
Just an update, I finally was able to locate a seal and bushing kit, so I took the transmission over to a mechanic I know. He was able to use 2 thin snap rings that equaled the thickness of the broken one (since that's what he had on hand). The first one went in the groove easy, and the second one took a little coaxing with a brass punch and a hammer, but he was able to get in it. Hopefully I will get a chance to drop the transmission back in soon and get her back on the road!


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PostPosted: Fri Apr 09, 2021 5:17 am 
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Supercharged
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Location: IRWIN PA
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Good Luck with it!

Greg

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PostPosted: Fri Apr 09, 2021 8:02 am 
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Joined: Mon Oct 21, 2002 11:08 am
Posts: 14865
Location: Blacksburg, VA
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Glad to hear it! Good luck w/the testing and long term driving.

I teach at VT and have lived in Blacksburg for 15 yrs. Would be fun to get together sometime.

All the best,

Lou

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"You mean you still have a Slant 6 in that thing?"


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PostPosted: Fri Apr 09, 2021 9:30 am 
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Supercharged
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Joined: Sat Nov 27, 2004 8:03 pm
Posts: 6904
Location: IRWIN PA
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Dart270 wrote:
Glad to hear it! Good luck w/the testing and long term driving.

I teach at VT and have lived in Blacksburg for 15 yrs. Would be fun to get together sometime.

All the best,

Lou


I am thinking day trip out Harding Ave / 785 to 311 next time I am there... with some skookum slants on the twisties and country roads!

Greg

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PostPosted: Fri Apr 09, 2021 11:19 am 
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Joined: Mon Oct 21, 2002 11:08 am
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Location: Blacksburg, VA
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I'm yer huckleberry...

Lou

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