Rubber batwing bushings
Thread Starter
Burning Brakes
Joined: May 2006
Posts: 985
Likes: 17
From: St. Louis Missouri
Rubber batwing bushings
Anybody know if RUBBER differential carrier (batwing) bushings are still available? Can't find them anywhere. Dealership is closed, haven't checked there. GMPartsDirect doesn't list it.
Thanks
Thanks
Thread Starter
Burning Brakes
Joined: May 2006
Posts: 985
Likes: 17
From: St. Louis Missouri
Yea. C3 available and not a C4? Go figure. Anyone have the dimensions of a C3 bushing? :bulb: I should buy one measure it.
EDIT: Found dimensions on NAPA's site.
Agreed. Not really worried about installation issues. I want the softer rubber. My car is on the ground and don't want to add to the "ride quality" with stiffer bushings. Every little bit adds up.
EDIT: Found dimensions on NAPA's site.
Agreed. Not really worried about installation issues. I want the softer rubber. My car is on the ground and don't want to add to the "ride quality" with stiffer bushings. Every little bit adds up.
Last edited by A95Y; Apr 27, 2015 at 12:31 AM. Reason: spelling
Team Owner
Joined: Sep 2003
Posts: 25,394
Likes: 2,741
I've a couple D36 covers that were on the shelf for spares on a street-rod with a C4 rear. These are very low mile pieces I'm very sure. This fellow kept NOS or as near new spares for his entire car. I've got one rear spring (NYR) left from the collection also.
On the NOS D44 cover the bushing center sleeve has a length of 65.49 (2.578), the bushing shell OD measures 54.57 (2.146) and the cover is 42.20 (1.660) thick at the bushing. That is a machined finish both sides not just a cast finish as one might expect. Ironically the center sleeve ID is closer to M14 diameter and I wouldn't have thought there would have been that substantial difference to the M12 bolt.
If your car is a D36 I'd sell one or both of the D36 covers inexpensively. I'll check the condition of bushings in the daylight.
Last edited by WVZR-1; Apr 17, 2015 at 04:50 AM.
Thread Starter
Burning Brakes
Joined: May 2006
Posts: 985
Likes: 17
From: St. Louis Missouri
I always intended or thought I'd use a Moog/NAPA or similar dimensional buyers guide and try to find a control arm bushing, spring eye bushing or similar that could be used. The problem with the C3 component for one is the metric spec of the bushing. The C4 uses M12 hardware, what was the ID spec on the NAPA C3 ID? What is the length of the mentioned bushing? I've got a couple NOS D44 covers that I can compare for you.
I've a couple D36 covers that were on the shelf for spares on a street-rod with a C4 rear. These are very low mile pieces I'm very sure. This fellow kept NOS or as near new spares for his entire car. I've got one rear spring (NYR) left from the collection also.
On the NOS D44 cover the bushing center sleeve has a length of 65.49 (2.578), the bushing shell OD measures 54.57 (2.146) and the cover is 42.20 (1.660) thick at the bushing. That is a machined finish both sides not just a cast finish as one might expect. Ironically the center sleeve ID is closer to M14 diameter and I wouldn't have thought there would have been that substantial difference to the M12 bolt.
If your car is a D36 I'd sell one or both of the D36 covers inexpensively. I'll check the condition of bushings in the daylight.
I've a couple D36 covers that were on the shelf for spares on a street-rod with a C4 rear. These are very low mile pieces I'm very sure. This fellow kept NOS or as near new spares for his entire car. I've got one rear spring (NYR) left from the collection also.
On the NOS D44 cover the bushing center sleeve has a length of 65.49 (2.578), the bushing shell OD measures 54.57 (2.146) and the cover is 42.20 (1.660) thick at the bushing. That is a machined finish both sides not just a cast finish as one might expect. Ironically the center sleeve ID is closer to M14 diameter and I wouldn't have thought there would have been that substantial difference to the M12 bolt.
If your car is a D36 I'd sell one or both of the D36 covers inexpensively. I'll check the condition of bushings in the daylight.
Looks pretty close, eh?
Dimension A O.D. : 2.18"
Dimension B I.D. : .58"
Dimension C Length : 2.6"
Dimension D Length : 2.02"
Dimension E Length : .35"
Dimension F Length : .35"
Dimension G O.D. : 2.2"
Last edited by A95Y; Apr 17, 2015 at 02:30 PM.
Thread Starter
Burning Brakes
Joined: May 2006
Posts: 985
Likes: 17
From: St. Louis Missouri
Okay. I ordered the 88912761 from the Dealership since AC Delco shows these as the Alternate/OEM number for the 45G11014.
Priced nicely with a discount and no shipping charge. Amazon has them also. I have the Energy coming also. So I am covered.
I am trying to get the bushing out without ruining it to compare. It's a bit of a challenge. I have to go Monday and see if they have the GM tool. I remember seeing something similar way back when.
Thanks
EDIT: Here's the proper GM numbers for a C4 D44. Old #14046958, newest #14066929,. Discontinued in 2005. No dealership in the U.S. has them.
Priced nicely with a discount and no shipping charge. Amazon has them also. I have the Energy coming also. So I am covered.
I am trying to get the bushing out without ruining it to compare. It's a bit of a challenge. I have to go Monday and see if they have the GM tool. I remember seeing something similar way back when.
Thanks
EDIT: Here's the proper GM numbers for a C4 D44. Old #14046958, newest #14066929,. Discontinued in 2005. No dealership in the U.S. has them.
Last edited by A95Y; Apr 17, 2015 at 06:05 PM.
Team Owner
Joined: Sep 2003
Posts: 25,394
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How rushed are you? I wanted to do something Monday with this but it could be as late as Tuesday. I've got the NOS D44 cover and I can measure more closely. It was something around 4 AM when I did that and I was certainly not wide awake.
Last edited by WVZR-1; Apr 17, 2015 at 06:04 PM.
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Thread Starter
Burning Brakes
Joined: May 2006
Posts: 985
Likes: 17
From: St. Louis Missouri
I don't believe but let me do some numbers. Do you have the entire NAPA dimensioned buyers guide or do you need to sort it one by one? I believe I have a Moog buyers guide somewhere. I'll look. The one nuisance I see with the one you've mentioned is the double stepped OD, the ID and the length of the outer sleeve.
How rushed are you? I wanted to do something Monday with this but it could be as late as Tuesday. I've got the NOS D44 cover and I can measure more closely. It was something around 4 AM when I did that and I was certainly not wide awake.
How rushed are you? I wanted to do something Monday with this but it could be as late as Tuesday. I've got the NOS D44 cover and I can measure more closely. It was something around 4 AM when I did that and I was certainly not wide awake.
I don't have the NAPA guide. I went by the info on the website. I think it is a NAPA branded Perfect Circle product. The Moog number should be K6116.
I will have the rubber GM bushings 88912761 Tuesday.
I was planning on putting it together Sunday with the poly bushings until I started getting overly curious.
Last edited by A95Y; Apr 17, 2015 at 06:45 PM.
Thread Starter
Burning Brakes
Joined: May 2006
Posts: 985
Likes: 17
From: St. Louis Missouri
The bushings were late and I decided to paint my cover between raindrops. I finished up Sunday.
I had to bevel the edge of the cover with a cylinder hone to get the bushings started and beat the daylights out of them when fitting. It would probably be easier with a press. I had to enlarge the mounting hole and use a 9/16" bolt. A 14mm would work as well but Sears didn't have a hardened metric bolt long enough. They are in and I am back on the road bigger and better. Need an alignment and I'm ready for the track. Here are some pics.
P.S. There are 2 bushings in the ACDelco# 45G11014 GM #88912761 Package. Both the boxes stated, "QTY 1". There were two bushings in each box. They are made by our friends in Mexico.
I had to bevel the edge of the cover with a cylinder hone to get the bushings started and beat the daylights out of them when fitting. It would probably be easier with a press. I had to enlarge the mounting hole and use a 9/16" bolt. A 14mm would work as well but Sears didn't have a hardened metric bolt long enough. They are in and I am back on the road bigger and better. Need an alignment and I'm ready for the track. Here are some pics.
P.S. There are 2 bushings in the ACDelco# 45G11014 GM #88912761 Package. Both the boxes stated, "QTY 1". There were two bushings in each box. They are made by our friends in Mexico.
Last edited by A95Y; Apr 27, 2015 at 02:05 PM. Reason: I cannot form a sentence.