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The inner race on the left is from my 2wd 4l60e out of my Trans Am. The one on the right is out of a 4wd 2003 unit. Will it work if that is the ONLY hard part I swap into my 2wd unit?
The one on the left is a Sonnax piece.
For their sunshell with bearing.
It redirects thrust.
If you swap the inner race, you need to have the shell and bearing to match.
The one on the left is a Sonnax piece.
For their sunshell with bearing.
It redirects thrust.
If you swap the inner race, you need to have the shell and bearing to match.
ok, thanks, Is this a hardened shell from my '03 unit or were those introduced later?
Does not look like a heat treated drum. 03 was the year they started to get reintroduced. Looks like you didn't get a hardened one.
As you can see, the left inner race is VERY different from the right. It's been cut down and bored out.
That's for the bearing UNDER the sunshell. Putting that bearing under the sunshell redirects the thrust force away from the captured bearing under the sun gear.
So...you either need to find a buddy with a lathe to cut the one on the right to match the left...use all the parts from the one on the right, or use all the parts from the one on the left.
When I say "all the parts" I mean shell, bearing/washer under shell, and inner race. Those 3 parts need to match as a set
Does not look like a heat treated drum. 03 was the year they started to get reintroduced. Looks like you didn't get a hardened one.
As you can see, the left inner race is VERY different from the right. It's been cut down and bored out.
That's for the bearing UNDER the sunshell. Putting that bearing under the sunshell redirects the thrust force away from the captured bearing under the sun gear.
So...you either need to find a buddy with a lathe to cut the one on the right to match the left...use all the parts from the one on the right, or use all the parts from the one on the left.
When I say "all the parts" I mean shell, bearing/washer under shell, and inner race. Those 3 parts need to match as a set
I attempted to cut into one of those inner races about 15 years ago... Talk about a hard material!
I should try this again... just to see if anything has changed.
Can I use the stepped reaction shaft with the sonnax smart shell if I also use the thrust bearing with it or do I need to use the non stepped reaction shaft with the thrust washer when using the smart shell?
My reaction shaft has a good step in it but my stepped reaction shaft out of my parts transmission is nice.
The induction hardened sunshells have a noticeable discoloration at the area where the low/reverse sungear attaches. If it does not have this, do not use this sunshell.
Whats it look like? The one you sold me has no discoloration. It also has no box or anything with a brand name on it. I called you and asked you about it. I also asked about the cracks around the splined area and you looked at a few others you had and said they all have the same cracks. Shallow looking cracks that may have come from the stamping process.
I've ordered stuff from you since 2003. This was my last order, probably 2018 and the packing material is why I'll never order again. That and the fact that now everyone says it should have discoloration (except when you're trying to sell one I guess). The ones at the GM dealer had no discoloration. Everyone I talked to says they don't have discoloration and I can't find a picture of a genuine GM sunshell that has discoloration from induction hardening.
So whats going on with all of this?
you can clearly see the lightly discolored area in this factory sunshell. This should answer your question. It’s not like a totally different color but you can tell it was heat treated.
Uh.... The packing material was a whole bunch of transgo instructions that SMELLED LIKE CAT ****, BAD. I think the apology needs to go the other direction........ JUST SAYIN
There are plenty of suppliers out there who use NEW packing materials. JUST SAYIN
when you said this....
That and the fact that now everyone says it should have discoloration (except when you're trying to sell one I guess). The ones at the GM dealer had no discoloration. Everyone I talked to says they don't have discoloration and I can't find a picture of a genuine GM sunshell that has discoloration from induction hardening.
nah man, I’m not talking about the packing. I wasn’t there, so I don’t know. I doubt he purposely packed your stuff with packing that a car pissed on tho. None of my business anyways. I was just suggesting about what you said above, none of my business either but still.
back then I said screw it and got a nice chinese beast sunshell. At least I knew I was buying a chinese piece of ****. This GM part is a mystery and 30 people have 50 differing opinions on what it should look like.
I'm over it. I have a GM sunshell that I bought from a well respected vendor here and 1 or two years ago wasn't supposed have discoloration typical to normal heat treating. I called concerned that it didn't look heat treated.
Now the wound has been opened because I have it right behind me on my office shelf and now the guy who sold it wrapped in cat **** says it IS supposed to be discolored.
I don't want an answer, I don't need another opinion or apology. It's a conversation piece that will never see a transmission. Thanks.
If I sold you one that was not heat treated. My mistake. I always buy the dealer GM sunshells. That does not mean one got by me. As I try to look at the ones I receive from my vendor, and they have many times tried to pass on the China crap to me. I would never sell one of the junk shells on purpose. I even quit selling the Beast because of problems with them. I have too much to lose, to do that to anybody. I have never had a failure with the heat treated sunshells, and why would I want a failure with them now. I apologize for this inconvenience, and I will send you one asap. Keep yours for a paper weight. Yes, I have cats around. Please get a hold of me on this...
4l60e inner race low roller 
