I'm looking at the Limited slip unit from a 1995 LS1 Firebird to put in my 1985 T-Type, does anyone know if the firebird diff will work in my T-Type's 8.5" rear?
Twin Spin !!! I don't think this is a problem as long as they are both 8.5 ring gears. I would check with member " oPh " on the V8 Board, he is very knowledgable on this, AL.
Thanks Scott, Too bad too, cause I could get it for free, looks like I'll be going with the Power-Trax in it then.
Free is always a good price!! :grin: My brother has that style rear in his '88 IROC.....he's already gone thru 3 rears. And that's only with a 305" TPI automatic!! ou: Maybe you should hold on to that one....I can see him needing #4 by next spring time. :Brow: :grin: You might want to look into that Detroit TrueTrac that is out.....looks pretty promising!! I hear they will have one for the older 8.2" rears.
Kurt, Just wanted to let you know in 1989 GM went to 30 spline axles. So, you will need to find a 28 spline unit. Before you get a powertrax, consider a used posi, probably less than 1/2 the price. For the design of the powertrax, that item is way, way overpriced!
posi vs power traxx /lock right I know you guys like the posi traction clutch style units and that is great, but technology is here to stay... that power traxx unit is brute strentgh. as far as the price it is expensive same as a posi clutch type eaton. So it all depends on what you what that posi to do and what you have to set it up with. if you ever sell the car at least you wont lose a posi, you can remove it and put the spyder gears back in with out changing the ring and pinion too. They also have a early version of the richmond power traxx it is called the lock right system it rachets more than the smooth version of the power traxx. This lock right version found in the truck section of the jegs catalog is half the price at 199.99 that is what I use and set up for many street strip cars around here . have not had a complaint about it ever slipping. so make the choice- there are many...lol Just have fun doing it. :3gears:
I don't know, Jim. Was looking at the ptrax on Summit site. Run from $300-400. I will go with a posi since I can find them in GM full size wagons and some trucks in the local u-pull-it yards and they are the 8.5" 3 series carrier. Oh yes, best part, any center section is $40. I will take the $250-300 savings and buy go-fast parts.
Jim, My T-Type is my only car so which system is better for a driver? If the power Trax is that much better than the lock right I don't mind spending the extra $$ for it. I don'r want to have to have my rear set up again so that is what makes these units so appealing since I'd have to pay to have an Eaton unit installed and I can do the power trax myself the cost works out to being about the same
power traxx vs lock right it is entirely up to you ...The power traxx is a smoother design but you are paying for that ( like a posi)the lock right are half the price but work like a detroit locker with a racheting sound like a click around corners. It does not just or stain any parts on the car. it is just sliding over the spring load teeth...thats is how it is designed to work. The power traxx works the same but has a few more components to quiet the job down. To me more components means more to break...lol and install. Like I said if you can put up with the little bit of clicking I would save your money for other upgrades else where. I am sure you will be more than pleased with the performace ease of install and life you get from this unit. Good luck. Jim
Jim, so neither one is more squirrely in the rain than the other? if they perform the same I can put up with the noise and save $220!! Besides, I bet a T/A cover will quiet it down some.
Eaton for the long haul Eaton is a little more but in the long run the owners over all found it a better choice because of easy service a reliablity :3gears: AL.
