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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: miller_89 on May 12, 2012, 09:29:45 AM

Title: 1975 chevy 3/4 ton front and rear differential oil change
Post by: miller_89 on May 12, 2012, 09:29:45 AM

Hey guys wanting to change the oil in the front and rear differentials of my 1975 Chevy 3/4 ton pickup and wanted to know what the best fluid to use is?

Title: Re: 1975 chevy 3/4 ton front and rear differential oil change
Post by: miller_89 on May 12, 2012, 10:19:35 AM

Any input at all on this topic will be greatly appreciated

Title: Re: 1975 chevy 3/4 ton front and rear differential oil change
Post by: bake74 on May 12, 2012, 01:03:29 PM

Quote from: miller_89 on May 12, 2012, 10:19:35 AM

Any input at all on this topic will be greatly appreciated

     You have to be patient for someone who can answer your question see's it and can respond.  It depends on what you have in the pumpkins. 
     Are both front end and rear end open with no lockers ?  Do they have factory gov-lock type or after market ?  Before you take suggestion from others make sure you give as much information as possible so we can give you the correct advise.  Nobody hear wants to give you the wrong advice and have you destroy something by accident.

Title: Re: 1975 chevy 3/4 ton front and rear differential oil change
Post by: VileZambonie on May 12, 2012, 04:28:50 PM

It all depends on which one you think tastes better ;)

GL5 is fine unless as bake74 said, determine that you need more