Rear Axle Line Lock - The 1947 - Present Chevrolet & GMC Truck Message Board Network

vtblazer · 09-16-2007, 02:31 PM

Yep, that's right.

Installed line lock on the REAR axle.

Here's why:
It's all about doing front digs.

A right turn would go like this.
Kick out rear axle (doubler w/triple sticks)
Depress brake, depress line lock button to the inner tire (two separate buttons)
Release brake and power the front axle with the go pedal
Power through the turn and when straightened out, release the line lock button and go.

I didn't like having to overpower the brakes during the digs and figured if there was a way to only lock the inner tire, turning radius could be thighter.

So here's a couple pics of the install. (not 100% complete yet)

Momemtary contact swithes in console lid
Made a bracket to hold the solenoids

EFI70Blazer · 09-16-2007, 02:37 PM

Very cool. Seem like it would also work well when side hilling in the snow.

pumpkin · 09-16-2007, 08:05 PM

I'm guessing that your open in the rear?

bigtruck81 · 09-16-2007, 11:40 PM

i would guess that if he's worried about doing front digs, its locked in the rear. but, kicking the power out to the rear axle, even a locked axle will act as if its open.

earl87gta · 09-17-2007, 01:41 AM

Thats cool when are you going to go test it out?

EFI70Blazer · 09-17-2007, 01:47 AM

Quote:

Originally Posted by pumpkin

I'm guessing that your open in the rear?

Not sure it would matter since the rear is disengaged anyway. You would only be putting power to the front alowing the rear to pivot on the locked tire.

vtblazer · 09-17-2007, 07:00 AM

Quote:

Originally Posted by earl87gta

Thats cool when are you going to go test it out?

Heading to Rausch Creek again on the 20th.

To answer the 'locked' question, yes it's got a Detroit and yes by what I can find out about the Detroit, it will free up the opposing axle during this maneuver.

jaros44sr · 09-17-2007, 07:15 AM

Nice work, soooo did you buy two line lock kits? I was going to hook up two separate e-brake handles to accomplish this, but your idea seems simplr. Maybe I'll see you at Rausch...J.

vtblazer · 09-17-2007, 07:48 AM

Quote:

Originally Posted by jaros44sr

Nice work, soooo did you buy two line lock kits? I was going to hook up two separate e-brake handles to accomplish this, but your idea seems simplr. Maybe I'll see you at Rausch...J.

No, not two kits just two solenoids.

The rest of the parts are just store bought to comply with my idea of how and where thing's should be installed and functioning.

You think you might make Rausch?
As of right now, I've got an open seat.

jaros44sr · 09-17-2007, 03:09 PM

Quote:

Originally Posted by vtblazer

No, not two kits just two solenoids.

The rest of the parts are just store bought to comply with my idea of how and where thing's should be installed and functioning.

You think you might make Rausch?
As of right now, I've got an open seat.

Hold it for me, give me 8 hrs. pls to figure it out. J.

bigtruck81 · 09-17-2007, 03:52 PM

works very much the same as a trick brake on a sand rail, in fact, that's what most comp crawlers use.

vtblazer · 09-17-2007, 04:41 PM

Quote:

Originally Posted by bigtruck81

works very much the same as a trick brake on a sand rail, in fact, that's what most comp crawlers use.

Thought they were running split pedals.

Pic of em plumbed and wired up.
Reused the existing tubing running to the calipers, doesn't look the best but it's one less connection to have to break.

Jim, not a problem.

vtblazer · 09-24-2007, 06:47 PM

Update post trial run @ Rausch:

Works awesome!

09-16-2007, 02:31 PM	#1
vtblazer Registered User Join Date: Oct 2003 Location: Central Vermont Posts: 8,538	Rear Axle Line Lock Yep, that's right. Installed line lock on the REAR axle. Here's why: It's all about doing front digs. A right turn would go like this. Kick out rear axle (doubler w/triple sticks) Depress brake, depress line lock button to the inner tire (two separate buttons) Release brake and power the front axle with the go pedal Power through the turn and when straightened out, release the line lock button and go. I didn't like having to overpower the brakes during the digs and figured if there was a way to only lock the inner tire, turning radius could be thighter. So here's a couple pics of the install. (not 100% complete yet) Momemtary contact swithes in console lid Made a bracket to hold the solenoids Attached Images

09-16-2007, 02:37 PM	#2
EFI70Blazer Active Member Join Date: Apr 2006 Location: Pendleton, OR Posts: 243	Re: Rear Axle Line Lock Very cool. Seem like it would also work well when side hilling in the snow. __________________ Mike T. Oregon 70 GMC Jimmy 4x4 70 Camaro LS1 plans in the works 71 RS/SS Camaro numbers matching 86 Chevy Silverado SWB 4x4 (454 merlin heads, 3/4 running gear upgrade, Detroit lockers front and rear)

09-16-2007, 08:05 PM	#3
pumpkin Registered User Join Date: Apr 2006 Location: East Sooke B.C. Canada Posts: 543	Re: Rear Axle Line Lock I'm guessing that your open in the rear?

09-16-2007, 11:40 PM	#4
bigtruck81 Registered User Join Date: Feb 2004 Location: northern, in Posts: 350	Re: Rear Axle Line Lock i would guess that if he's worried about doing front digs, its locked in the rear. but, kicking the power out to the rear axle, even a locked axle will act as if its open.

09-17-2007, 01:41 AM	#5
earl87gta Senior Member Join Date: Dec 2003 Location: Kingsport TN Posts: 4,641	Re: Rear Axle Line Lock Thats cool when are you going to go test it out? __________________ Earl 68 2500 4x4 GMC Burb

09-17-2007, 07:15 AM	#8
jaros44sr Registered User Join Date: May 2006 Location: Philadelphia, Pa. 19454 Posts: 9,446	Re: Rear Axle Line Lock Nice work, soooo did you buy two line lock kits? I was going to hook up two separate e-brake handles to accomplish this, but your idea seems simplr. Maybe I'll see you at Rausch...J. __________________ Semper Fi...Uncle Sam, you da man All parts offered to help are free, unless otherwise noted Dont try this stuff in my build thread, unless you have 55 years of mechanical OTJ training SAFETY FIRST AS usual, off topic They say your mind goes second, can't remember the first Jim

09-17-2007, 03:52 PM	#11
bigtruck81 Registered User Join Date: Feb 2004 Location: northern, in Posts: 350	Re: Rear Axle Line Lock works very much the same as a trick brake on a sand rail, in fact, that's what most comp crawlers use.

09-24-2007, 06:47 PM	#13
vtblazer Registered User Join Date: Oct 2003 Location: Central Vermont Posts: 8,538	Re: Rear Axle Line Lock Update post trial run @ Rausch: Works awesome!



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