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Dana 20 input snap ring

Dbarnes72

Sr. Member
Joined
Mar 18, 2009
Messages
643
Loc.
Eastern Wa.
Finishing up my a Dana 20 rebuild. The input shaft gear retainer snap ring wasn't included in the kit. I'm wondering if folks generally bend these back into shape and reuse or is there a suggested source. I bent it back to what I thought would work but it's got a little more clearance to the groove than I would like.
 

blubuckaroo

Grease Monkey
Joined
Jun 11, 2007
Messages
11,795
Loc.
Ridgefield WA
I just installed an Advance Adapters NV3550 kit. It didn't come with that snap ring. I was tempted to use the old one but it just didn't have enough tension left and made me uncomfortable to use it. I took the old one to the part store and they had a good selection to pick from.
 
OP
OP
Dbarnes72

Dbarnes72

Sr. Member
Joined
Mar 18, 2009
Messages
643
Loc.
Eastern Wa.
I just installed an Advance Adapters NV3550 kit. It didn't come with that snap ring. I was tempted to use the old one but it just didn't have enough tension left and made me uncomfortable to use it. I took the old one to the part store and they had a good selection to pick from.

Probably good advice. I tried NAPA and was treated to 5 minutes of catalog fumbling and then Nope! for the ring and a locknut. Guess I'll head to Ace Hardware and give it a whirl. I've had NAPA send me there before after they give up. Frustrating. Thanks for the input
 

VT_Don

Sr. Member
Joined
Aug 16, 2001
Messages
365
The retaining rings used in transmissions are often a unique thickness. If not included in kits, looking at bulk purchase from distributors.
I don't understand why automotive is different as every other industry has adopted ANSI std profiles. I'm often stuck getting commerically available rings, then surface grinding them to fit.
 

gorf

Jr. Member
Joined
Aug 1, 2010
Messages
94
No. That is the bearing retainer snap ring, not the gear snap ring.

thanks for the quick reply. i too am trying to locate the snap ring without much success. does anyone know a dependable source or could give me the measurements to have a better conversations with the transmission part companies in my area (45044). i broke the ring when removing it and most stores are unwilling to help. thanks again.
 

Viperwolf1

Contributor
electron whisperer
Joined
Aug 23, 2007
Messages
24,312
The retaining rings used in transmissions are often a unique thickness. If not included in kits, looking at bulk purchase from distributors.
I don't understand why automotive is different as every other industry has adopted ANSI std profiles. I'm often stuck getting commerically available rings, then surface grinding them to fit.

This is correct. That ring is thicker than those you will find at hardware stores. Best practice is to not bend them up too bad in the first place. A little bending you can straighten out.
 

707Bronk

Sr. Member
Joined
Mar 18, 2012
Messages
590
The D-20 input C-clip and the C-clip on the Front Output shaft (T-shift) are two that I couldn't find direct OE replacements for.

I can't tell you how much time I wasted pouring over parts bins looking for a good replacement. I finally found full circle clips for each that fit, but it took WAY longer than it should have.

The one on my input gear wasn't bad, probably could have re-used it. But the one on the front output shaft was toast.

Someone has to know where to find these...
 

gorf

Jr. Member
Joined
Aug 1, 2010
Messages
94
I ordered the ring from jbg. They suggested its a better design than original (c vs circle). Are there any specific fitment issues i should look out for?
 

cs_88

Bronco Guru
Joined
Jul 28, 2005
Messages
1,321
I would be concerned that their snap ring is the same thickness as the original c clip. When you get it let us know how it compares to the original.
 

langester

Contributor
MASTER OF MADNESS
Joined
Mar 2, 2013
Messages
2,660
What is the diameter of the snap ring? I have one laying around but I am not sure which one it is. This one is about 3- 5/16" outside diameter 3" inside diameter. Not sure if its the one you need or not, let me know.
 

bobscott

Full Member
Joined
Mar 18, 2013
Messages
310
I found one the same thickness at either fastenal or grainger can't remember which.
 

gorf

Jr. Member
Joined
Aug 1, 2010
Messages
94
I went with the crown small parts kit. nothing else I found worked.
 

cs_88

Bronco Guru
Joined
Jul 28, 2005
Messages
1,321
Not too difficult, You'll need a dial indicator w/magnetic base and either a toaster oven or press for bearings.
Piece o' cake.
 
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