Rear gear and type ?

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Old Apr 27, 2018 | 01:48 PM
  #1  
oldstata's Avatar
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Justin
 
Joined: Mar 2012
Posts: 3,453
From: utah
Rear gear and type ?

I am guess Pontiac rear end
can’t seem to find anything on the number found on ring gear and pinion any help would be great
1357560 10gmc ring gear numbers
pinion gear B-10-43
I did count the ring counted 43 but I didn’t double check before sealing cover, I can’tseem TO find anything on these numbers








Old Apr 27, 2018 | 03:11 PM
  #2  
4speed455's Avatar
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From: Modesto CA
Looks like a bop 8.2 10 bolt with 4.30 gears.
Old Apr 27, 2018 | 03:21 PM
  #3  
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Justin
 
Joined: Mar 2012
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From: utah
I can’t seem to find anything on line about 4:30 gears
I need to order parts I am sure it won’t matter but want to make sure I order correct
Old Apr 27, 2018 | 05:27 PM
  #4  
SmirchIs#1's Avatar
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From: Cobleskill NY 12043
Originally Posted by oldstata
I can’t seem to find anything on line about 4:30 gears
I need to order parts I am sure it won’t matter but want to make sure I order correct
What parts are you planning on ordering?I ask because I see a spacer plate between your ring gear and the differential.A ring gear spacer is never a good idea,especially if you have some power under the hood.If the rear is a 8.2" & does look to be that, then that differential is for 2;93-3;23 ratio.The diff. looks to be an Eaton or one of the copies that are out there.
Old Apr 27, 2018 | 05:50 PM
  #5  
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Justin
 
Joined: Mar 2012
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From: utah
Originally Posted by SmirchIs#1
What parts are you planning on ordering?I ask because I see a spacer plate between your ring gear and the differential.A ring gear spacer is never a good idea,especially if you have some power under the hood.If the rear is a 8.2" & does look to be that, then that differential is for 2;93-3;23 ratio.The diff. looks to be an Eaton or one of the copies that are out there.
I need to adjust the pinion so I am replacing pinion bearing and. Shim kit no real power right now and just a stick rebuild in its future 400/455 with a 4 speed is the plan
Old Apr 28, 2018 | 08:53 AM
  #6  
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From: Medford, Oregon
Justin, I hadn't seen these pictures yet. I agree that it looks like you've got a spacer under the ring gear. But it looks like there may be damage to the teeth on the ring gear. You may need someone who knows more than us about rear ends give you their opinion on using that ring gear. John
Old Apr 28, 2018 | 10:13 AM
  #7  
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Justin
 
Joined: Mar 2012
Posts: 3,453
From: utah
Originally Posted by 2blu442
Justin, I hadn't seen these pictures yet. I agree that it looks like you've got a spacer under the ring gear. But it looks like there may be damage to the teeth on the ring gear. You may need someone who knows more than us about rear ends give you their opinion on using that ring gear. John
yes I agree, the pinion is riding on the putter edge it needs to move to sit better
it was set up wrong.
It drive nice just howls on declaration
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