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Post Info TOPIC: 1964 Differential has different bushings
Ben


- RAMBO -Mill Creek, WASite Administrator

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1964 Differential has different bushings
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Learn something new everyday i guess...

I dug in today and swapped on my new tubular rear LCAs... nice nice.

Started on the uppers tonight- a bitch to get the bolts out, but got all the nuts off, and took the first arm off.

Immediately spotted a problem... the ear bushing is tiny! I had never seen that before. See the pic below, i'm holding up the replacement bushing that is the normal size.

 

Did some googling and... apparently this is a 1964 chevelle rear end. The small bushings were unique to 64 only. Wild, never knew.... 

So just need different bushings right? Holy shnikes! Only "Rare Parts" makes new rubber ones and they are  $53 EACH!!! yikes!

But... luckily- Energy suspension makes a poly bushing that size and UMI sells them as a pair for $40. Wasn't going to go with poly in the ears, but I will now!

Anyway- A little set back, but learned a few more obscure chevelle facts, and should have them in another week and be ready for burnouts again!

 



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Ben R.

1968 Chevelle 300 - 454 / 4spd




- wondah whooooaman-
Colorado Springs


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Man, you seem to have all the luck!!  Nice recovery though, and I'll have to file that little tidbit away.  Are the 64 rear ends narrower too?



-- Edited by gotago on Sunday 24th of December 2017 08:38:39 AM

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- Mike -
Puyallup, WA


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gotago wrote:

Man, you seem to have all the luck!!  Nice recovery though, and I'll have to file that little tidbit away.  Are the 64 rear ends narrower too?



-- Edited by gotago on Sunday 24th of December 2017 08:38:39 AM


I read about that small upper bushing deal years ago, obscure for sure...housing isn't any narrower though than a '65-67 Chevelle.  Nothing else that I know of is different.  Since most go for a 12 bolt for an upgrade not many people seem to run across this issue.



-- Edited by cobaltchev67 on Sunday 24th of December 2017 11:20:08 AM

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'67 Chevelle -- 383ci, Jerico DR4, S60 3.54

'70 Camaro -- In the works TT 6.0L, 4L80E, 12 bolt ??? ratio



- Beemer Brett - Redmond, WA

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Yeah never seen that.

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Ben


- RAMBO -Mill Creek, WASite Administrator

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Guys on TC said it also has funky axle spines.. don't know about that.

I have a line on a 12 bolt core, but I'm a long way from being ready to buying the guts, so gotta make this one work for another couple years.

At least I'll already have new ear bushings for when I do get the 12 bolt. Lol.



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Ben R.

1968 Chevelle 300 - 454 / 4spd



- New Guy -

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I "think" the eyes are cast further foreword on the early housings also, which may have been your wheel hop issue. Did you by chance measure your existing pinion angle/

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Ben


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thor wrote:

I "think" the eyes are cast further foreword on the early housings also, which may have been your wheel hop issue. Did you by chance measure your existing pinion angle/


I found that mentioned in a quote posted on the ChevelleStuff Site... along with another note of how the 64-66 rears with the flat spring pads, the pads are located 3/4" lower than the later style, which would also explain why this car sat so freakishly low with its factory springs.

 

I didn't measure the angle before hand, figured i would just install them with the factory length and see how it does with new bushings alone- but if thats true about the eye's being farther forward we'll find out pretty quick. 

Kind of interesting to learn these new tidbits of info to file away.

 

UMI replied to my post on the main tc site that the bushings i ordered DON'T come with shells... One of my shells i put a gack in it with the drill while removing the rubber. The other one is slightly misshapen and fell out of the housing ear after i pulled the upper arm off it...

So i may have to order those expensive ones from orillys tomorrow after all. ALl part of the game i guess.

 

 

 

 

 

 



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Ben R.

1968 Chevelle 300 - 454 / 4spd

Ben


- RAMBO -Mill Creek, WASite Administrator

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well, I guess i should have listened to Ryan from UMI on TC... Bushings arrived today, no shells.

So- Decided rather than spend another $125 to buy two of the rubber bushings, i ordered ONE of them, when it arrives next week i'll burn the rubber out of it and use its shell with the UMI poly bushings i got today.

In the meantime, i'll go ahead and get one of the new installed into the good shell I have now and get that arm installed.

(not sure i mentioned it above, one shell fell out of the diff ear when i pulled the arm off, that shell is all misshapen, so i can't reuse it).



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Ben R.

1968 Chevelle 300 - 454 / 4spd

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