Haynes repair manual lists step by step to remove the differential. Any shortcuts? Is there a better manual for do-it-yourselfers? Thanks.

 

Do a search.It's not that bad a job.

 

The orthodox method of removing the differential is to remove the differential crossmember with the diff attached. This has been a richly rewarding emotion experience for many. As suggested check the search function. (Hint: if you unbolt the differential crossmember, it still won't come out. Also, never attempt to remove the crossmember with the bolts removed. Loosen them by perhaps 3/8 of an inch when you try to break the crossmember loose.)

 

Yes, get the factory service and chassis manuals and also, the AIM (Assembly Instruction Manual). The major corvette vendors sell them.

I've not found the Haynes manuals to be that helpful. Lets say you want to replace a kafluggin valve. I'm going to exxagerate a little here, but I think you'll get the point. The Haynes instructions will state:

1) disconnect the battery
2) remove the kafluggin valve
3) install the new kafluggin valve
4) reconnect the battery

Except for the battery disconnect/reconnect, there's a lot of missing detail on a lot of their repairs. Where there is a lot of detail, it appears they just copied stuff from the factory manuals.

Also, when I needed to replace the oxygen sensors on my 97 Tbird, I found a comment in the Haynes manual that they didn't provide repair instructions for the smog equipment, the text stated I had to consult a professional, so there was not clue as to where the oxygen sensors were. BS. I was able to find the oxygen sensors by myself. I've done repairs on my 95 Cadillac and 97 Tbird where the detail needed was not in the Haynes manual. I'd say that if you want to spend $30 for a document that copies parts of the factory manuals and tells you to disconnect the battery and reconnect the battery, go for it. Best advice: buy the factory manuals, use the forum, and oh yes...once again, we can't forget, remember to disconnect and reconnect the battery.

 

 

The short cut is too cut an access hole in the rear storage compartment in the center where the crossmember crosses under neath. From there you will see the 4 bolts holding the diff and can drop the diff within a few minutes keeping vs. going through the correct process taking the rear crossmember off.

 

I vote for the 2-jaw puller method, FWIW. I'm too cheap to buy a dedicated transmission jack so I made a wooden cradle out of scrap wood that I bolted to my small trolley jack; with this method you can wheel it right out into the driveway for a pressure wash. Also makes installation much easier. The cross piece on the cradle is bolted to the rear holes on the strut rod mount so the diff can't go anywhere:

 

I didnt cut anything.I too a 2 jaw pulled and some liquid wrench and it popped right off.I supported with an atv jack from harbor freight.I put a 1 by 2 across the front of the jack under the pinion snout and took it out by my self.I also put it back in the same way.It's really not bad unless you have a badly rusted car.

 

The differential weighs ~100 lbs. so use caution when trying to break it free.



Rick B.

 

Hi R68,
Nice idea and picture of the cradle!
Well Done!
Regards,
Alan

 

Thanks for this photo. When I lowered my diff, I wasn't this sophisticated. I just located the lift arm of the floor jack at what looked like the center of gravity of the differential. Then I used scooted out from underneath the car and lowered the diff by a small about. Kept doing this in small increments until it was out.

 

Hi Alan, thank you. Working alone in tight quarters sometimes you gotta get creative