73-87chevytrucks.com

73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: grinder1989 on April 16, 2009, 09:35:04 pm

Title: Need help ASAP!
Post by: grinder1989 on April 16, 2009, 09:35:04 pm

Will a '72 3/4 ton rear end fit under my 74 1/2with no modifications?

Title: Re: Need help ASAP!
Post by: Blazin on April 16, 2009, 10:04:39 pm

Would have to move the spring perches.

Title: Re: Need help ASAP!
Post by: grinder1989 on April 16, 2009, 10:11:15 pm

stop the water  :(  I need a rear end.  Thanks for your help though.

Title: Re: Need help ASAP!
Post by: grinder1989 on May 07, 2009, 09:17:46 pm

What 12 bolt posi rear ends car I put under my truck with the smallest amount of work possible?

Title: Re: Need help ASAP!
Post by: exilous on May 07, 2009, 09:21:39 pm

moving the spring perches isnt horrible work ist not too bad actually.

Title: Re: Need help ASAP!
Post by: VileZambonie on May 07, 2009, 10:03:38 pm

Is the lug pattern even the same?

Title: Re: Need help ASAP!
Post by: grinder1989 on May 07, 2009, 10:17:03 pm

scratch the first post. 

What 12 bolt rear ends from trucks can I put under mine with little to no modifications.

Title: Re: Need help ASAP!
Post by: Captkaos on May 07, 2009, 11:15:35 pm

Any 1973-1981 12bolt or 80-87 10bolt will bolt up (10's would need a hybrid U-joint) with the same drivetrain.  If you have a 4x4 you need a 4x4 donor, same is true of a 4x2.
There is no strength difference in either axle for street tires.