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Old 08-29-2024, 07:35 PM   #5
hatzie
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Join Date: Oct 2008
Location: Wentworth, NH
Posts: 4,975
Re: Rant about Trans Cooler Lines

Dorman 800-614 are the female Jiffy Tite transmission line fittings.
The Mastercool hydraulic fitting forming tool works great. Kinda pricey but it works great. Maybe you could find someone to form the ends of a 3/8" Ni-Copp roll.

The SAE J1910 transmission cooler hose lasts 5-10 years. If it's installed with replaceable clamps you can install a new section when it leaks.
The cooling pack is mounted to the body so there's some flex between that and the engine/transmission package. If you don't have the rubber hose to take up the flexion the lines will crack.
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1967 Dodge W200 B383, NP420/NP201 SOLD
1969 Dodge Polara 500 B383, A833 SOLD
1972 Ford F250 FE390, NP435/NP205 SOLD
1976 Chevy K20, 6.5L, NV4500/NP208 SOLD
1986 M1008 CUCV SOLD
2000 GMC C2500, TD6.5L, NV4500
2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263
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RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials...Please include at least the year and model in your threads. It'll be easier to answer your questions.
And please let us know if and how your repairs were successful.

Last edited by hatzie; 08-29-2024 at 07:40 PM.
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