GM truck 12 bolt. any lockers for these?

[chevybuilder18]

ok so i have 4.11:1 gears i have now comfirmed, with me and some one else spinning my hubs the same direction at the same speed and the pinion did 4 fast revolutios, while we did 1 slow turn on the hubs. its open differental. id like to change that, ive looked at power trax richmond loc rite set ups, and they only carry the cars 12 bolt version. It looks nothing like GMs pick up 12 bolt... does anyone else carry this without having to buy there whole differental package?

[andrewmp6]

http://www.drivetrainamerica.com/p-7...k-373-lsd.aspx http://www.drivetrainamerica.com/p-7...73-up-lsd.aspx http://www.justdifferentials.com/ind...Path=24_45_279

[ont_guy_38]

I know a 12 bolt car and truck carrier are different but, I wonder that since the lockrite goes inside your original carrier if that part every 12 bolt is the same. On richmonds website they do list for a truck 12 bolt but it is the same part as a car 12 bolt. They should know what they are selling you would think.

[motornut]

Originally Posted by andrewmp6

http://www.drivetrainamerica.com/p-7...k-373-lsd.aspx http://www.drivetrainamerica.com/p-7...73-up-lsd.aspx http://www.justdifferentials.com/ind...Path=24_45_279

thanks good to know

[ont_guy_38]

Andrew, I think he is considering a lockrite as they can be installed by anyone with a little mechanical experience. If that's not the case than I totally agree with you. Can't beat the Eaton GM puts in them.

[SSC's76]

no there for trucks as well you just need to know how many spline your axles are a guy just stuck one in his truck about 2 weeks ago if you go do a search in the engine and drivetrain you will find he posed a part number as well. imo there junk I've got one collecting dust in storage. if I ever get aa 4wD I might pop it into the front axle that's where something like this belongs


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[andrewmp6]

I found a lock right for it http://www.justdifferentials.com/ind...oducts_id=3762 or http://www.justdifferentials.com/ind...oducts_id=3764

[Firebirdjones]

Originally Posted by chevybuilder18

ok so i have 4.11:1 gears i have now comfirmed, with me and some one else spinning my hubs the same direction at the same speed and the pinion did 4 fast revolutios, while we did 1 slow turn on the hubs. its open differental. id like to change that, ive looked at power trax richmond loc rite set ups, and they only carry the cars 12 bolt version. It looks nothing like GMs pick up 12 bolt... does anyone else carry this without having to buy there whole differental package?

All kinds of choices out there. Depends on your flavor.

Eaton is the most popular. They make the detroit true trac that's gotten very popular lately, and they also make the clutch style posi's that were installed in muscle cars since the early 60's. Both work well.

[orbot]

check out ebay.. there are Auburns for around $340 im considering getting one myself.

[chevybuilder18]

thanks for the advice guys, i do plan on maybe building this 12 bolt up, with it doing 4 fast revolutions no wander my right tire on the back is bald, never gets traction on take offs and such. cruises through town like in 3rd gear at 30 mph, i think of it like its an over drive in town, but once i hit the high way its 5.5 mpg

[chevybuilder18]

Originally Posted by andrewmp6

http://www.drivetrainamerica.com/p-7...k-373-lsd.aspx http://www.drivetrainamerica.com/p-7...73-up-lsd.aspx http://www.justdifferentials.com/ind...Path=24_45_279

Idk bout you guys but Eatons limited slip looks good. people with all sorts of rearends are saying there pretty decent even though there not a true posi, they become one on demand. some LSDs are favorable at lower torque speeds, like cornering and such, lockers wouldnt be great for corners, and it all depends i guess on the final drive. with that much torque being displaced by 4.11:1s, how much do these things really need to kick in?

[andrewmp6]

If you use that company look up reviews on them i just found them from google.Or find out what you want get the name and part number and hit up some of our vendors.

[chevybuilder18]

Originally Posted by andrewmp6

If you use that company look up reviews on them i just found them from google.Or find out what you want get the name and part number and hit up some of our vendors.

Yea that question was pretty tricky. Eatons lockers look pretty sophisticated also, is anybody running an Eaton Locker?

[INSIDIOUS '86]

I got a true track from Detroit . Love it to death. A lil more gas and it chirps the inside wheel in a corner. I highly recommend it. Also cheaper than the spring type eaton both great units. Lockers are nice but to me kinda a nuisance on the street. Good for weekend warriors I would say.
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[chevybuilder18]

Originally Posted by INSIDIOUS '86

I got a true track from Detroit . Love it to death. A lil more gas and it chirps the inside wheel in a corner. I highly recommend it. Also cheaper than the spring type eaton both great units. Lockers are nice but to me kinda a nuisance on the street. Good for weekend warriors I would say.
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ten bolt and the true trac? Detroits true trac i heard alot of third gen camaro dudes put down that unit. but if it works for you
i also like how much cheaper it is. this is the first time ive seen some one run these units with out complaints.

[Firebirdjones]

Originally Posted by chevybuilder18

ten bolt and the true trac? Detroits true trac i heard alot of third gen camaro dudes put down that unit. but if it works for you
i also like how much cheaper it is. this is the first time ive seen some one run these units with out complaints.

I run a Detroit true track in the 12 bolt for my wifes 4th gen camaro. It's what Strange sells the most of and seems to be the carrier of choice. Since I bought the 12 bolt from Strange it seemed like a no brainer. They sell them for the Dana and 9" setups as well. Tons on the street and proven with big HP. I run their 33 spline setup.

I like mine...

[INSIDIOUS '86]

Originally Posted by chevybuilder18

ten bolt and the true trac? Detroits true trac i heard alot of third gen camaro dudes put down that unit. but if it works for you
i also like how much cheaper it is. this is the first time ive seen some one run these units with out complaints.

Seems like all the road racers and trans am and curcuit racers like them and run em. Ihave upgraded 30spline axles in my ten making it only slightly less strong than a car 12. Ring gear size is its only draw back but plenty can go tens on theses just fine. 3rd hen Camaro guys complain about everything. Guess they are angry they can't afford real Camaros and muscle lol.

I would change the 12 to a truck ten if I were you IMO since there's more options and unless your going tens or faster no need for the 12 bolt and its lady's sized pinion diameter gear haha.

I launch straight as an arrow and can do it with one wheel in dirt ant the other on dry ground. Can go around a corner tap the gas and drift if I want and go through windy roads with ease. Love it. I've burned a few eatons but they can be upgraded to 800# springs and cf clutches so when you go and park your tires drag like a spool. My old man has a locker in his elky. A lil but of gas and a sharp turn locks it and you chirp and bounce or it don't lock and clack clack clack around the corner. The auburn. You burn it up and buy another. No point in getting it can't be rebuilt. Lunch box lockers. They can take some abuse and are good on price don't last terribly long and not the best choice for high hp and big tire combos.
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[INSIDIOUS '86]

Originally Posted by chevybuilder18

ten bolt and the true trac? Detroits true trac i heard alot of third gen camaro dudes put down that unit. but if it works for you
i also like how much cheaper it is. this is the first time ive seen some one run these units with out complaints.

They also don't like synthetic oils. A lot of them third gen guys can't read instructions not to use synthetic in your diff. No company recommends it on anything.
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[sqzbox]

Got one in my 80 Big 10. Don't know if it came with it or if it was replaced. it will leave 2 stripes till it hooks up but not far with the 3:07's