Tiffany Haney
TH350 transmission pan bolts are used to secure the transmission pan of a Chevrolet Truck Car. The bolt set includes 13 pieces of standard thread bolts with a flange head. The bolts are zinc-coated for corrosion resistance. While the TH350 transmission pan bolts are standard thread bolts, there have been reports of metric bolts being used in TH350 tailshaft housing to bolt the rear mount on.
| Characteristics | Values |
|---|---|
| Number of bolts in the set | 13 |
| Bolt type | 5/16-18 Standard thread bolts with a flange head |
| Bolt coating | Zinc |
| Bolt compatibility | Chevrolet Truck Car TH350 TH400 700R4 Powerglide 4L60E |
| Bolt usage | Used to secure the transmission pan |
| Bolt availability | Available on Amazon and Jegs |
| Bolt set includes | 1 27mm 12-point bolt (5/8"-18 x 2.06"), 1 balancer washer (1.955" o.d.) |
| TH350 metric bolt usage | Used in the TH350 tailshaft housing to bolt the rear mount on |
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What You'll Learn
TH350 transmission pan bolts are metric
TH350 transmission pans are also compatible with TH400 transmissions. The ICT Billet TH350 TH400 PAN BOLT SET Transmission Chevy Kit is one such example. This set is compatible with Chevrolet Truck Cars with engines of 305 327 350 383 5.0L or 5.7L V8.
The TH350 transmission pan bolt set is also available from Jegs, with the product name "JEGS 83370: Automatic Transmission Pan Bolt Set." This set also includes 13 5/16-18 x 3/4 inch bolts that fit both TH350 and TH400 transmissions.
In addition to the standard transmission pan bolts, there have been instances where metric bolts were used in the TH350 tailshaft housing to bolt the rear mount on. The THM700-R4 transmission, for example, has the VIN stamped just above the pan on the driver's side, indicating the use of metric bolts.
When dealing with TH350 transmission pans and bolts, it is important to ensure proper installation and torque specifications to prevent leaks and maintain the integrity of the transmission system.
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TH350 bolt sequence
The TH350 transmission pan bolt set comes with 13 bolts that are compatible with TH350 or TH400 transmissions. The bolt set has 5/16-18 standard thread bolts with a flange head. The bolts are zinc-coated for corrosion resistance.
While there is no specific sequence for tightening the pan, it is recommended to start from the middle and work outwards in a widening circle. This involves snugging the bolts first, then doing a small tighten, and finally torquing them. It is important not to overtighten the bolts, as this can bend the pan sealing area and cause leaks.
Some people recommend using a gasket with metal inserts, while others suggest using an oil-soluble grease like Vaseline or bearing grease to hold the gasket in place. It is advised to avoid using silicone on the pan gasket or any sealant with the gasket.
The TH350 pan bolt torque is @8ft lbs, and the recommended torque sequence involves making two full passes to achieve the final torque.
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$11.95
TH350 bolt compatibility with Chevrolet vehicles
The TH350 transmission pan bolt set is compatible with Chevrolet truck cars. The bolt set is made of premium-grade materials and is designed to secure the transmission pan in vehicles with TH350 or TH400 transmissions. The set includes 13 5/16-18 standard thread bolts with flange heads, which are zinc-coated for corrosion resistance.
The bolt set has received positive reviews from customers, who have praised its good quality and value for money. One customer noted that the bolts had nice washer heads, while another mentioned that they were sturdy and robust.
In addition to the TH350 transmission pan bolt set, there are also bolt kits available for other Chevrolet models, such as the Chevy V6, 265-454 V8, and the Chevy 350. These bolts are designed to secure the torque converter to the flexplate in the transmission.
It is important to note that when installing or working with TH350 transmission pan bolts, the proper bolt sequence should be followed to ensure a secure fit and prevent leaks. The bolt sequence for the TH350 transmission pan may vary from other bolt patterns, such as the six-bolt and three-bolt pattern found in some Chevrolet models.
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TH350 bolt corrosion resistance
The ICT Billet TH350 TH400 PAN BOLT SET Transmission Chevy Kit is a set of 13 standard thread bolts with a flanged head that can be used to secure your transmission pan. These bolts are zinc-coated for corrosion resistance and are compatible with TH350 or TH400 Transmissions.
The Spectre Torque Converter Bolt & Lock Nut Set is also designed to fit the TH350, as well as the Powerglide, and many TH400 transmissions. These bolts are black oxide-plated for corrosion resistance and include security lock nuts.
Both the ICT Billet and Spectre bolt sets are manufactured using high-quality materials and are designed to provide a precise fit and optimal functionality. The ICT Billet bolts are also available in a heavy-duty, high-strength grade 10.9 version, ensuring even greater durability and resistance to corrosion.
In addition to the above, it is worth noting that the ICT Billet company uses USA-made materials, belt tensioners, metric flange bolts, and pulleys, ensuring reliable and trusted products. Their dedication to quality and innovation, coupled with state-of-the-art facilities and American-made equipment, results in unmatched quality and durability.
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TH350 bolt size
The TH350 transmission case uses different bolt sizes depending on the specific component and model year. For instance, the bell housing to block bolts are typically 3/8" coarse thread size, with a length of 1 3/4" and a grade 8 standard. However, some variants may use 7/16" or 10mm x 1.25mm bolts instead.
Motor mount bolts can vary depending on the type of motor mount used. For clamshell motor mounts commonly found on 70 to 81 Camaros, the bolt size is usually 1/2" x 13 x 4 1/2", grade 8. Earlier models with rubber motor mounts, like the 1968 Camaro, may also use a 1/2" bolt or possibly a 7/16" bolt, as mentioned by another source.
It's worth noting that the information provided spans different model years, and bolt sizes may have changed between production runs. It's always a good idea to consult manufacturer specifications or specialised forums for your specific model to ensure you have the most accurate and up-to-date information.
Additionally, when replacing bolts, it is essential to consider the correct bolt type and grade to ensure safety and proper functionality. Using bolts with the wrong specifications can lead to mechanical issues or even failures.
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Frequently asked questions
The ICT Billet TH350 TH400 PAN BOLT SET Transmission Chevy Kit is used to secure your transmission pan and is compatible with TH350 or TH400 Transmissions.
There are 13 bolts in the set.
Yes, the bolts are metric.
