How to Service a GM 12 Bolt Rear Differential - Multiple Models!

[@derekdeckens2559]

Very good video. Clear, easy to follow and helpful experience being shared. Thank you!

[@2carpros]

You're very welcome!

[@michaelcrossley4716]

Put a couple start bolts in before applying. It will keep the gasket from slipping around.

[@designsinorbit]

Idea for ya from a loyal subscriber- NOBODY has a step by step guide to changing a rear gear size in a GM 12 bolt. I've been on forums and a ton of people are scared to take it on. FYI :)

[@2carpros]

Great! Thank you so much for watching and subbing! That's a great idea and I'll put it on the list!

[@designsinorbit]

@@2carpros I successfully built a 496 using your big block series. Changing a rear gear would be awesome knowledge as well.

[@2carpros]

@@designsinorbit That is amazing and warms my heart! Thank you for telling me that! And thank you for watching! Yeah totally!

[@007rom3]

Probably a dumb question but I don’t put trans fluid in the dif? And should put that oil?

[@STREETFIGHTER50]

I got a question. Are the widths different between all the 1968-1972 GM car 10 or 12 bolt rears?

[@robd7365]

Nicely filmed video 👍 my Oldsmobile 12 bolt O rear does not have a full plug like your Chevy rear... It only has the nylon vent plug. What is your recommendation for fluid capacity?

[@2carpros]

Thank you! It has to have a fill plug somewhere. Look all around the front and use a screwdriver to kinda poke around. It might be caked in grease and super tough to see. Thanks for watching!

[@rhodycars6058]

BOP are different than Chevy

[@fuelbasti]

So, two or three bottles?

[@filibertoquevedo8119]

Do you know what is for the upper hole?, the one with a white cap (over the filling hole).

[@2carpros]

That is a vent for the differential case. Thanks for watching!

[@gregl2249]

if using the rtv, why not just eliminate the gasket altogether?

[@2carpros]

Like I said some people do. I have always just liked using both. Thanks for watching!

[@salvadorgutierrezr5914]

👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍and thanks for the video🙏🙏🙏🙏🙏👋

[@2carpros]

So nice of you!