Toyota Landcruiser (1984-1992) 70 73 74 Series 11/1984-1992 Tough Dog T44H-LH Tough Dog Rear Leaf Spring
TD-T44H-LH

Leaf springs represent one of the most enduring suspension designs in automotive history, maintaining their relevance in commercial vehicles due to their exceptional load-bearing capabilities. Engineered in Australia, these progressive rate leaf springs incorporate both primary and secondary stage leaves, ensuring that the vehicle's ride quality remains uncompromised under varying load conditions.

As the spring compresses under load, the secondary stage engages, effectively preventing excessive sag and maintaining optimal ride height. The manufacturing process is meticulously designed to maximize durability, offering robust corrosion resistance and sag prevention, ensuring longevity in demanding environments.

These leaf springs are available in up to three distinct spring rate options for most applications, providing the flexibility necessary to tailor the suspension setup to your specific vehicle requirements. Each spring is precision mandrel and die-formed, oil quenched, hardened, and tempered to guarantee extended service life.

Standard features include military wrap across all part numbers, accurate heat treatment, and construction from high-grade spring steel. Many applications also incorporate anti-friction pads to enhance performance. The springs are pre-stressed to maintain ride height and are rigorously load rate tested to ensure reliability.

For vehicles equipped with additional accessories, various spring rates are available to accommodate constant load carrying. The approximate raised height provided by these springs ranges from 40 to 50mm, with specific models designed for light and constant load applications:

T44L-LH - 0-300kg Light Load Passenger Side
T44L-RH - 0-300kg Light Load Driver Side
T44H-LH - 300kg Constant Load Passenger Side
T44H-RH - 300kg Constant Load Driver Side

It is advisable to pair these raised springs with long travel shock absorbers to optimize performance. When selecting springs, note that LH and RH designations indicate the need for one of each to form a complete set. Constant Load refers to weight that is permanently added to the vehicle, such as fixed accessories like canopies, steel trays, draw systems, fridges, toolboxes, rear bars, or spare wheel carriers.

Choosing the appropriate spring rate is crucial for achieving the best balance of load carrying capacity, ride quality, and ride height. Please be aware that images provided are for representation purposes only and may not correspond directly to the specific part number being viewed.

Leaf Spring Features

• Precision mandrel & die-formed
• Oil quenched, hardened & tempered to ensure longevity
• Military wrap is standard across all part numbers
• Accurately heat-treated
• Manufactured from high grade spring steel
• Anti-friction pads in most applications
• Pre-stressed to maintain ride height
• Diamond cut ends
• Load rate tested

Spring Rate Options

• T44L-LH - 0-300kg Light Load Passenger Side
• T44L-RH - 0-300kg Light Load Driver Side
• T44H-LH - 300kg Constant Load Passenger Side
• T44H-RH - 300kg Constant Load Driver Side

Important Notes

• We recommend fitting long travel shock absorbers with raised springs.
• Constant Load refers to weight that is added to the vehicle and will remain in/on the vehicle at all times.
• Fixed accessories such as a canopy, steel tray, draw system, fridge, tool boxes, rear bar or spare wheel carrier are considered Constant Load.
• It is important to select the most relevant spring rate to achieve the best results for load carrying, ride quality and ride height.

Select the most appropriate spring rate option to suit the fixed accessories on the vehicle:

Approximate Lift Height: 40-50mm

T44L-LH - 0-300kg Light Load Passenger Side
T44L-RH - 0-300kg Light Load Driver Side
T44H-LH - 300kg Constant Load Passenger Side
T44H-RH - 300kg Constant Load Driver Side

Sold Individually.
Where LH and RH are noted select one of each to create a pair.

High quality 4x4 suspension upgrades proudly sold by PPD Performance.

Shipping Policy

PPD Performance offer custom built suspension solutions, with unique adjustability and performance.

These kits are assembled to order to suit your requirements, with an average lead time that can vary between 1-3 days.

If you need a specific eta, please contact us before ordering and we will be sure to assist you.