Sun West Transmissions (623) 473-9800
Sun West Transmissions (623) 473-9800
· The first and only all-new, never remanufactured torque converter available in the independent aftermarket
· LuK TorCon 6L80 offers best-in-class performance, backed by Schaeffler’s years of experience as a leader in the field of motion technology
· Schaeffler, a pioneering force in the field of motion technology, announced the debut of its latest repair solution, the LuK TorCon 6L80. As the sole offering of its kind, the LuK TorCon 6L80 is the only all-new, never remanufactured torque converter available in the independent aftermarket.

Many builders, including those at Sun West Transmission, will skip replacing or sending out your Pump/Bell housing assembly simply for cost reasons. However, at Sunwest Transmission, we always start off with a newly machined Pump/Bell housing assembly, ensuring quality in every transmission repair in Glendale, AZ. When you choose our transmission repair Glendale AZ you can trust that you're getting the best service possible.

At Sunwest Transmission, we send our cores to a local transmission machinist who specializes in transmission repair in Glendale, AZ. He resurfaces the areas where the pump impeller spins and machines the top surface to maintain integrity, ensuring there’s no deficit in the space between. Every 6L80 and 6L90 receives a machined pump, stator, and bell housing; we take no shortcuts at our transmission shop Glendale AZ.
The 1234 piston is a known issue with these applications, particularly in the context of sun transmission systems. The piston can develop cracks, which may lead to clutch failure (figure 3). If you’re working on an early application, always update the piston to the later design, as GM has made improvements to address these issues. At Sunwest Transmission, we often encounter these cases in our transmission repair Glendale AZ services.
Additionally, the piston housing has a tendency to crack, although it isn’t as common as the piston itself. The inside diameter of the housing can develop a crack and may even break away completely, resulting in 1234 apply issues. Like the piston, GM has also updated the housing to resolve this problem, ensuring that our transmission shop Glendale AZ can provide reliable repairs.


· The first and only all-new, never remanufactured torque converter available in the independent aftermarket
· LuK TorCon 6L80 offers best-in-class performance, backed by Schaeffler’s years of experience as a leader in the field of motion technology
· Schaeffler, a pioneering force in the field of motion technology, announced the debut of its latest repair solution, the LuK TorCon 6L80. As the sole offering of its kind, the LuK TorCon 6L80 is the only all-new, never remanufactured torque converter available in the independent aftermarket.
As an established leader in the manufacture of torque converters in the OE market, Schaffler’s commitment to consistent manufacturing processes, allows for the TorCon 6L80 to establish a new standard for best-in-class performance. This product category launch demonstrates Schaeffler’s dedication to continuous improvement, ensuring the highest quality aftermarket solutions in the market.
With a design proven to last up to five times longer than rebuilt torque converters, the LuK TorCon 6L80 represents the company’s commitment to durability and performance. Unlike remanufactured options that demand labor-intensive process pf acquiring and stocking model-specific cores, the LuK TorCon 6L80
The stock unit, particularly the JMBBX model found in some sun transmissions, suffers from several manufacturing deficiencies:
Thin Stamped Cover: The OEM cover is prone to flexing under heat cycles and heavy loads, causing the lockup clutch to apply unevenly.
Weak Clutch Material: It uses a single-disc, thin woven carbon friction material that frequently flakes off or becomes glazed.
Aggressive Lockup Calibration: To maximize MPG, factory tuning commands the converter to 'slip' constantly (even in low gears), generating excessive heat and wear that can lead to the need for transmission repair Glendale AZ.
Soft Impeller Hubs: The hubs can shear or strip, which immediately compromises the hydraulic line, an issue that could be addressed at a reliable transmission shop in Glendale, AZ.
The 1234 piston is a known issue with these applications, particularly in the context of sun transmission systems. The piston can develop cracks, which may lead to clutch failure (figure 3). If you’re working on an early application, always update the piston to the later design, as GM has made improvements to address these issues. At Sunwest Transmission, we often encounter these cases in our transmission repair Glendale AZ services.
Additionally, the piston housing has a tendency to crack, although it isn’t as common as the piston itself. The inside diameter of the housing can develop a crack and may even break away completely, resulting in 1234 apply issues. Like the piston, GM has also updated the housing to resolve this problem, ensuring that our transmission shop Glendale AZ can provide reliable repairs.

Sun West Transmission and Auto Repair Glendale
6116 West Northern Ave Glendale, Arizona 85301
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