73-87chevytrucks.com

73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: jim.clark.52687506 on April 07, 2015, 12:38:52 pm

Title: Locking rear end options?
Post by: jim.clark.52687506 on April 07, 2015, 12:38:52 pm

What are my options for locking my 14bolt? The truck is a 84 K2500 hot 350/4x4/auto trans. I've used Detriots in the past but I don't like the 3/4 revolution slop the have when you put it in gear and it bangs. How do I tell what I have now if it has a factory posi or some such?

Title: Re: Locking rear end options?
Post by: Irish_Alley on April 07, 2015, 12:59:02 pm

lol the ¾ turn slop on the Detroit is normal? i thought that meant it was bad and ive took mine out before just cause of that

Title: Re: Locking rear end options?
Post by: jim.clark.52687506 on April 07, 2015, 01:10:25 pm

I knew it was normal but it just drove my crazy! The banging and jerking. Was thinking about an OX locker but they are expensive too

Title: Re: Locking rear end options?
Post by: 87max on April 07, 2015, 08:59:29 pm

Dollar for dollar you won't beat a Detroit. Good luck breaking one. Ya they make noise but are simple and bullet proof.

Title: Re: Locking rear end options?
Post by: ehjorten on April 08, 2015, 09:00:41 am

ARB!

Title: Re: Locking rear end options?
Post by: jim.clark.52687506 on April 08, 2015, 01:10:36 pm

ARB are nice. I agree with you but I don't have onboard air. Dont want the hassle or added expence of it. Guess I'll jus do a banging Detroit or cheap out and do a spool.

Title: Re: Locking rear end options?
Post by: Edemich on April 08, 2015, 10:31:15 pm

Stock GM G80 for a 14 Bolt.  Limited Slip, no noise.  However it is referred to as the Gov Bomb by most off road communities. 

However, if it's for light off roading might be a viable option.

Title: Re: Locking rear end options?
Post by: Engineer on April 09, 2015, 08:29:12 am

First question is it a 10.5" FF 14-bolt? Or is it a 9.5" semi float 14-bolt. A 1984 3/4ton with a 350 would have been delivered with the semi-float 9.5". The most likely way it would have the full float is if it was swapped in.

Your options will be different depending on which axle you have.

Title: Re: Locking rear end options?
Post by: jim.clark.52687506 on April 09, 2015, 08:55:33 am

Guess I'll need to pop a hubcap and look at the axle end right? If I has bolts it's full if it's recessed it's semi?

Title: Re: Locking rear end options?
Post by: Engineer on April 09, 2015, 10:13:35 am

Correct.

Title: Re: Locking rear end options?
Post by: Mario on April 09, 2015, 11:30:21 am

I'll probably go with a TrueTrac when I get around to it. 

Title: Re: Locking rear end options?
Post by: jim.clark.52687506 on April 09, 2015, 12:05:03 pm

Is the Tru track the little "clicker" ones that replace the spider gears? I've used them in jeeps before and never had any trouble with them with 36" tires. I had forgotten about them. They were cheap too comparatively