1986 Buick Regal Turbo-T 3.8L V6 .The 1987 Buick Regal Turbo-T (often recognized as the T-Type successor) featured a 3.8L turbocharged V6 engine (LC2) producing 245 horsepower and 355 lb-ft of torque, with a 0-60 mph time of approximately 5.5 to 6 seconds. It was known as a "sleeper" or lighter alternative to the Grand National, offering similar, often faster performance with a more luxurious, non-black, and trimmed-down appearance. MotorWeek +4Engine and Performance Engine: 3.8L (231 CID) SFI Turbo V6 (LC2). Horsepower: 245 HP @ 4400 RPM. Torque: 355 lb-ft @ 2800 RPM. Turbocharger: Garrett AiResearch with air-to-air intercooler. Transmission: TH200-4R 4-speed automatic. 0-60 MPH: 5.561987 Buick Regal T-Type: Wheelbase: 108.1 in. Overall Length: 200.6 in. Curb Weight: Approx. 3,199 lbs (Turbo-T) to 3,349 lbs (Grand National). Rear Axle: 8.5-inch with 3.42:1 gear ratio. Currie 9-Plus Notch-Back Rear End with 31 Spline Axles (Currie #CE-GMG7887X) Currie Crate Rear Ends are designed to be a bolt-in upgrade 9-Plus notchback heavy duty housing 31 Spline performance axle package Built to the stock overall width (58") and pinion offset specs 58" is measured outside-of-axle-flange to outside-of-axle-flange, in other words, where the wheel bolts on to where the wheel bolts on All stock suspension brackets are installed in the stock location for an easy bolt in installation, and urethane upper control arm bushings are installed in the upper control arm housing brackets Housing includes all 3rd member studs installed Axles include: Stock 5 x 4 3/4" wheel bolt pattern Wheel studs installed 1/4" Thick heavy-duty bearing retainer plates Tapered Timken style wheel bearings pressed on The Axle flanges on this rear end are the Big Bearing Ford (New Style), also known as "Torino", which fit the Wilwood brakes perfectly Southwest Speed 9" Ford Rear End Third Member with Posi Trac-Loc (SWS Part #603-2078) This kit comes with a 3.70 ratio gear, which is a good cruising ratio. We have ratios from 3.50 to 5.00 that can be substituted in. If you would like a different ratio besides the 3.70, just make sure to request that. 9" Ford case is reconditioned and sold completely assembled with: New 31 Spline Trac-Loc Posi Unit 4 Pin limited slip trac loc Brand new, not rebuilt This is a clutch style posi unit Using this product does require friction modifier in the gear lube New Premium Ring & Pinion New Solid Shim Set New Bearings New Pinion Yoke 3rd Member Gasket Instructions Detailing Proper Break-In Procedure Professionally set up with proper lash Pinion is precision matched to ring gear Pinion yoke is 1310 series "short" yoke; Accepts 1310 series u-joints, which have 1 1/16" outside diameter cups and measure 3 7/32" wide to the outside of the cups Shipped in heavy cardboard box with foam to prevent any damage in shipping Due to the nature of high performance ring & pinions, some gear noise is a possibility with these 3rd members In addition to this kit, we have driveshafts that will fit this application in this listing (https://www.ebay.com/sch/m.html?_ssn=southwestspeed&_from=R40&_trksid=m570.l1313&_nkw=driveshaft+length+yoke&submit=Search&_sid=10422829 ). We would just need to know what length your specific vehicle requires. Wilwood Disc Brake Kit with Standard Rotors and Black Calipers (Wilwood Part #140-11009 Front & #140-11389 Rear): Wilwood brake kits consist of specifically engineered & matched groups of components designed to provide superior brake system performance & custom appeal over a wide range of applications. For the Front, Forged Dynalite Pro Series front hub