2000 miles after a tranny rebuild [due to reverse being lost], i was driving about 45mph. heard a loud 'pop'. no forward gear. car rolled to a stop. put the car in neutral and shut off the car. the car would not roll when placed in neutral. no forward or reverse gears.

had the car towed to a shop. they pulled the differential cover and ALL of the ring bolts were sheared off. also a chunk of the differential case was broken off.
they pulled the tranny and gave me a substantial list of parts to replace.
[however, i'm more inclined to believe they want to replace all hard and soft parts for a larger profit]

now that the bolts have been cleared from the diff, the tranny goes into drive and reverse but will not shift into park with the engine running. any possible solutions?
tc bad?

is it possible the tranny locked up and my rolling to a stop sheared the bolts?

 

I find it very hard to believe all the ring gear bolts broke. Did you see this or are you going by what they told you? Are you using a ring gear spacer?

Have you put the rear back together or just cleared out the bolts?

What kind of car are we talking about?

 

i saw the bolts at the shop. in addition, when i got it home, i opened the case. there was still a sheared bolt stuck in the upper left side, above the ring teeth.
the rear was a 2.73 and now is a 3.73 so i'm presuming a ring spacer was used.
the ring and pinion was done in dec of last year with no apparant problems

car is 98 ta
a4
3.73 richmond
freshly rebuilt engine with bolt on's

 

I broke the ring gear bolts off in a car that had an 8.2 rear with a ring gear spacer and a manual trans. It just acted like it went into neutral.

One problem I see is the availability of the correct bolts to replace the broken ones unless you get a new spacer with bolts. The bolts are left hand thread so they're not easy to find, and they have to be longer than stock or they WILL break again.

If you opened it back up when you got it home and saw a bolt still stuck in the case you need to go back to this shop and raise some hell with them. Thats dangerous to have a bolt floating around in there.

I'd also pull a ring gear bolt out and check the length.

 

anyone else?

 

anyone?

 

Huh... no one go figure.

Try to be more specific.

So what did they do pull a bad trans and put it back in or did you let them rebuild it?
The trans has go to be back in the car because ....Does it DRIVE in reverse and drive? It sounds like you're running it with something disconnected and when you put it in park it must just click because, even though you might shift from neutral to park the output still spins and it won't go into park untill it stops. OR are you saying it won't hold the car? OR is the linkage not adjusted OR will the shift lever not move to park?
The torque converter is NOT the problem.

My guess going by information that makes hardly no sense is that the ring gear and spacer came loose and broke something in the trans when it locked up. Now how it's doing something totally different I don't know.
Maybe you can provide some information that makes sense and people will reply.

 

ok, i'll be more specific:
has anyone sheared all of the bolts attaching the ring gear, located in the differential?
if so, what may have been the cause?

has anyone had a 4l60e had the tranny not shift into park with the engine running?
when attempting this action, there is a grinding sound reminecent of a manual tranny being shifted without the clutch engaging.
if so, what may have been the cause?

car cannot be driven as all of the bolts attaching the ring gear, located in the differential, have been sheared off.

while raised on stands, the engine was started. it was observed that 'drive' functioned. this observation is based on the fact that the drive shaft was turning.

 

OK now we're getting somewhere. Like I said I have broken the ring gear bolts off once, it was in a manual trans car. The reason was wrong bolts and/or they came loose. I put the right bolts back in and never had another problem with it.

Now as your car sits it has no ring gear bolts, so it will go into drive and reverse fine but not move.
The problem when you go to put it in park is caused by the driveshaft turning while the parking pawl is trying to engage. Even it you leave it in neutral the driveshaft will still probably turn.
What you're explaining is totally normal for the condition your car is in.

I've done this and had the same results running with no driveshaft.

The good news might be that your trans is fine. You just need to fix the rear.
It might be as easy as pulling the differential and removing the broken bolts from the ring gear(mine came right out) and replacing them with the right ones, and inspect for other damage, and putting it back in. The only problem is that the bolts are left hand thread so you can't find them easily, plus you have a ring gear spacer. So you really need to pull it and be sure everything is still good, order a new spacer with bolts and put it back together.

Perfect explanation this time.

 

thanks for the info

 

8a8mfh is one bad **** lol....