my dad told me about a "locking block" to make a posi rear end real easy, cant seem to find what he is talking about, i have 2.73's in the back of what im gonna take a great guess at is a 10 bolt in the back of my 88 sport coupe, how can i make her posi without welding it cheap?

 

Welding doesn't make anything posi, it makes it a solid, non-differential rear.

The cheapest way to make it posi... is to put a posi in.

 

you won't like the way you go around corners.

 

he is talking about a spool, or in this case a mini spool.. Its a terrible idea. All it does is temporarily lock the rear axle together until you break one. Driving in the rain will be treacherous and the rear will squeal and skip when turning.

if you want a posi/limitied slip rear, install a real limited slip/posi carrier.

now locking the axles together, and a posi/limitied slip, are to entirely different animals.

 

my dad says its in the shape of a c, so im a little confused

 

Just spend the money and buy the locker unit. You will hate it if you weld it up !

 

Honestly I wouldn't put a locker unit in there either if you're talking about the Powertrax or Richmond units. Those damn things are noisy and jerky going around corners. I speak from experience on those since I had one some time ago. The only locker worth a damn for these rears is the Truetrax unit. The best clutch style posi unit would be the Eaton, which are pretty damn expensive. The cheapest way to get a good posi unit is to find a factory Zexel-Torsen unit from a 98 and newer f-body. They're all gears, with no clutches to wear out, and you can usually find them used on ebay for around 150 bucks or less. The only downside is that he has an 88 rearend, which has 26 spline axles, so he'd have to buy a set of 90-92 f-body axles, which are 28 spline. Torsens require the 28 spline axles. Btw, if you want a dirt cheap "posi" unit, I happen to have a 3 series, open carrier I pulled at the junkyard that someone welded up the spider gears! Lol.

 

Auburn locker(clutch style) posi unit and no problem with the mentioned above.

 

An Auburn locker? Are you sure you really mean locker, or are you referring to their clutch style posi unit? If your rear has a factory Auburn unit in there, those aren't lockers, they're posi units that use cone style clutches. The only Auburn units I've ever noticed that are true lockers are their E-Locker, which uses a 12 volt power source that enables the unit to use an electric solenoid to lock it up. Then you've also got those air-powered locker units that are a popular, aftermarket locking diff that 4WD guys love to use. Thing is, I don't think Auburn makes the air-locker if I remember correctly. Problem with the E-lockers and the Air lockers is they're ridiculously expensive! As far as Auburn's cone clutch posi diff is concerned, there's not too many people at all that are actually fond of them. Reason being is that once the cone clutches wear out, there's no replacement cones available for them. That's why most people detest the factory Auburn units. Once the cone clutches are toast, in the trash it goes! That's what makes the more expensive, Eaton clutch style posi units a lot nicer. They use flat clutch discs, and they're fully rebuildable with the simple purchase of a new clutch pack. Not trying to start an argument with you Stebo, but I'm truly curious to know if Auburn offers some other sort of true locker unit besides the really expensive E-lockers.

 

It's just a simple Auburn posi-unit a friend and i installed one evening. Bought it from another friend at a decent price new in the box. I realize the mass confusion this must have started . Not a factory posi unit at all. Good information and I do stand corrected. As far as starting an argument, only idiots argue on the internet. Peace bro

 

Oh yeah, it's all good on this end. I totally agree with you about all the pointless arguments that start online. I seriously was genuinely curious if Auburn really ever made a "true locker" type carrier unit. I'm pretty familiar with most differential parts that are available, and I was just thinking "wow, is this something Auburn made that I've never seen before?"

 

Right on bro ! Thanks for the information and correction.