The Tremec T56 is the 6-speed manual transmission that defined a generation of American muscle cars. Originally developed by Borg-Warner in 1992 for the Dodge Viper's massive V10 torque output, it was adopted by General Motors for the redesigned 1993 Camaro Z/28 and Pontiac Firebird Trans Am as a no-cost option under RPO MM6. The same basic architecture- with application-specific bellhousings and tailhousings- went on to serve the Corvette C5, Ford Mustang SVT Cobra, and Cadillac CTS-V, making the T56 one of the most widely used performance manual transmissions in American automotive history.
In the F-body Camaro and Firebird application, the T56 ran from 1993 through 2002 in two distinct generations. The LT1-era T56 (1993 to 1997) used an external slave cylinder clutch release system mounted on the bellhousing. The LS1-era T56 (1998 to 2002) switched to a concentric hydraulic throwout bearing- a cleaner, more direct clutch release that became the standard for LS engine swap builds. The gear ratios also changed significantly from the 1993 model: the first-year T56 offered a wider 3.36:1 first gear (and an optional G92 performance package with 2.97:1 first gear), while 1994-and-newer LT1 and all LS1 units used the closer 2.66:1 first gear with a deeper 0.50:1 sixth gear for exceptional highway fuel economy.
The 1998 to 2002 LS1 T56 has become one of the most popular swap transmissions in the American performance community. Its 450 lb-ft torque rating, hydraulic clutch release system, LS-compatible bellhousing pattern, and massive aftermarket support make it the first choice for any LS engine conversion where a 6-speed manual is desired. Used LS1 F-body T56 units command a premium compared to LT1-era units specifically because of this swap demand.
Four distinct T56 configurations across the 10-year F-body production run:
| Year | Application | 1st Gear | Torque Rating | Notes |
|---|---|---|---|---|
| 1993 (std) | Camaro Z/28, Firebird Trans Am | 3.36:1 | 350 lb-ft | Wide ratio. External slave. First year T56. 6th gear: 0.62:1. |
| 1993 (G92) | Camaro Z/28 with G92 performance option | 2.97:1 | 400 lb-ft | G92 close ratio. External slave. Rarest F-body T56. |
| 1994 to 1997 | LT1 Camaro Z/28, Firebird Trans Am | 2.66:1 | 450 lb-ft | External slave cylinder. 6th gear: 0.50:1. Most common LT1 T56. |
| 1998 to 2002 | LS1 Camaro Z/28 SS, Firebird Trans Am WS6 | 2.66:1 | 450 lb-ft | Concentric hydraulic throwout bearing. Most desirable for LS swaps. |
| INCLUDED | Complete T56 transmission assembly with all internal gears, synchronizers, detent springs, shift forks, shift rails, reverse lockout solenoid. Output yoke where present. |
|---|---|
| NOT INCLUDED | Clutch disc, pressure plate, throwout bearing (LT1) or concentric hydraulic throwout bearing (LS1), flywheel, bellhousing (bellhousing is part of the engine side on LS1 applications), transmission fluid. |
| FLUID- MANDATORY | Fill with Dexron III ATF ONLY. Never use gear oil (GL-4 or GL-5). Gear oil destroys T56 synchronizer rings. |
| Core Note | No core charge. |
The F-body T56 was factory installed in the following vehicles:
| Chevrolet Camaro Z/28 (LT1) | 1993 to 1997- LT1 T56 with external slave cylinder |
|---|---|
| Chevrolet Camaro Z/28 and SS (LS1) | 1998 to 2002- LS1 T56 with concentric hydraulic throwout bearing |
| Pontiac Firebird Trans Am (LT1) | 1993 to 1997 |
| Pontiac Firebird Trans Am and WS6 (LS1) | 1998 to 2002 |
| Corvette C5 (different tailhousing) | 1997 to 2004- NOT directly interchangeable with F-body without tailhousing swap |
| Swap Applications- LS engine conversions | The 1998 to 2002 LS1 T56 is the most popular 6-speed for LS swap builds across all makes and models |
The LS1 T56 (1998 to 2002) is the most swap-friendly T56 variant. It uses the standard LS bellhousing pattern and the hydraulic clutch system compatible with aftermarket LS swap bellhousings. For swaps into non-GM or pre-LS GM vehicles, the LT1 T56 requires an LS bellhousing and clutch conversion, or use of a McLeod or Tick Performance conversion kit. For any vehicle already designed around an LS engine with hydraulic clutch, the 1998 to 2002 LS1 T56 is the correct direct-fit choice.
Engine or transmission: LS1 V8 (5.7L)- factory F-body pairing for LS1 T56 | LT1 V8 (5.7L)- factory pairing for LT1 T56 | Compatible with any LS-series engine in swap applications using LS1 T56 variant.
Not sure if this fits? Call (240) 301-0095. We verify fitment before every order ships.
Used OEM vs Rebuilt- Which Is Right for You?
Used OEM is the right choice for a Camaro Z/28 SS or Firebird Trans Am replacement and the most cost-effective starting point for an LS swap build. Our T56 units are gear-tested with LT1 vs LS1 application, gear ratio set, and clutch release system confirmed.
The Tremec T56 Magnum (aftermarket TR-6060 based unit) is the right upgrade if your engine produces more than 500 lb-ft of torque or if you want carbon synchronizer rings for track use. Magnum units run $2,800 to $3,500 new from Tick Performance, Bowler, or American Powertrain. Call us and we can discuss what your power level warrants.
Mileage and operating hours vary by unit. Where available from the donor vehicle or equipment, we provide this information. Where it cannot be confirmed, we disclose this before your order is placed.
| Transmission Type | 6-speed manual | fully synchronized |
|---|---|
| Manufacturer | Borg-Warner (1993 to 1997) | Tremec (1998 to 2002) |
| Lt1 T56 Clutch Release | External slave cylinder- fork actuated. NOT compatible with LS engines without conversion. |
| Ls1 T56 Clutch Release | Concentric hydraulic throwout bearing- preferred for LS swaps |
| 1993 Gear Ratios Std | 1st: 3.36 | 2nd: 2.07 | 3rd: 1.35 | 4th: 1.00 | 5th: 0.80 | 6th: 0.62 |
| 1993 G92 Gear Ratios | 1st: 2.97 | 2nd: 2.07 | 3rd: 1.43 | 4th: 1.00 | 5th: 0.80 | 6th: 0.62 |
| 1994 To 2002 Gear Ratios | 1st: 2.66 | 2nd: 1.78 | 3rd: 1.30 | 4th: 1.00 | 5th: 0.74 | 6th: 0.50 |
| Torque Rating | 350 to 450 lb-ft depending on variant |
| Input Shaft | 26 spline |
| Output Shaft | 27 spline |
| Case Material | Aluminum alloy |
| Weight | Approximately 110 to 115 lbs |
| Fluid | Dexron III ATF ONLY- no gear oil |
| Production Years | 1993 to 2002 (F-body application) |
| Applications | Camaro Z/28 SS | Firebird Trans Am WS6 | Corvette C5 (different tailhousing) |
Every used Camaro T56 Transmission For Sale sold by Vaz Auto Solutions is covered by a 15 day replacement warranty from the date of delivery.
To make a claim, contact us within 15 days of delivery at (240) 301-0095 or info@vazautosolutions.com.