Transmission Inlet Fitting size?
Transmission Inlet Fitting size? Can anyone tell me off hand what size inlet fittings the 4l60e uses? I tried a search and can't come up with anything. Placing a big order on Summit and those are the last things I need to submit my order. Also off the inlet fittings should I use a 45 degree hose end (using all -6 lines) or 90 degree or straight? Just briefly looking up there under the car it doesn't look like there's a whole lot of room? Any help is greatly appreciated. Thanks!!
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Joined: Aug 2010
Posts: 7,323
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From: Ann Arbor, MI
See this thread:
https://ls1tech.com/forums/automatic...-fittings.html
They are 1/4" STRAIGHT fittings, not tapered. The normal AN-Pipe adapters are tapered and could potentially crack the case. I don't think the right adapters are sold by Summit; you can buy them from various ebay sellers - search for "4l60E AN fittings" and you will see pairs for $18.
In reality I and many others have used 1/4" NPT tapered fittings without problems or leaks, but be careful not to overtighten them. Still the straight fitting with washer are correct and best.
Also, very late model 4L60E (e.g. 2010) have a different thread again - in these an AN-6 male to male with O-ring works perfectly.
I use AN braided hoses and one 90 degree and one 45 degree fitting work best.
https://ls1tech.com/forums/automatic...-fittings.html
They are 1/4" STRAIGHT fittings, not tapered. The normal AN-Pipe adapters are tapered and could potentially crack the case. I don't think the right adapters are sold by Summit; you can buy them from various ebay sellers - search for "4l60E AN fittings" and you will see pairs for $18.
In reality I and many others have used 1/4" NPT tapered fittings without problems or leaks, but be careful not to overtighten them. Still the straight fitting with washer are correct and best.
Also, very late model 4L60E (e.g. 2010) have a different thread again - in these an AN-6 male to male with O-ring works perfectly.
I use AN braided hoses and one 90 degree and one 45 degree fitting work best.
Last edited by mrvedit; Jan 6, 2013 at 10:19 PM. Reason: Correction - I originally posted 1/8". Sorry.
See this thread:
https://ls1tech.com/forums/automatic...-fittings.html
They are 1/8" STRAIGHT fittings, not tapered. The normal AN-Pipe adapters are tapered and could potentially crack the case. I don't think the right adapters are sold by Summit; you can buy them from various ebay sellers - search for "4l60E AN fittings" and you will see pairs for $18.
In reality I and many others have used 1/8" NPT tapered fittings without problems or leaks, but be careful not to overtighten them. Still the straight fitting with washer are correct and best.
Also, very late model 4L60E (e.g. 2010) have a different thread again - in these an AN-6 male to male with O-ring works perfectly.
I use AN braided hoses and one 90 degree and one 45 degree fitting work best.
https://ls1tech.com/forums/automatic...-fittings.html
They are 1/8" STRAIGHT fittings, not tapered. The normal AN-Pipe adapters are tapered and could potentially crack the case. I don't think the right adapters are sold by Summit; you can buy them from various ebay sellers - search for "4l60E AN fittings" and you will see pairs for $18.
In reality I and many others have used 1/8" NPT tapered fittings without problems or leaks, but be careful not to overtighten them. Still the straight fitting with washer are correct and best.
Also, very late model 4L60E (e.g. 2010) have a different thread again - in these an AN-6 male to male with O-ring works perfectly.
I use AN braided hoses and one 90 degree and one 45 degree fitting work best.
On The Tree
Joined: May 2010
Posts: 168
Likes: 1
See this thread:
https://ls1tech.com/forums/automatic...-fittings.html
They are 1/8" STRAIGHT fittings, not tapered. The normal AN-Pipe adapters are tapered and could potentially crack the case. I don't think the right adapters are sold by Summit; you can buy them from various ebay sellers - search for "4l60E AN fittings" and you will see pairs for $18.
In reality I and many others have used 1/8" NPT tapered fittings without problems or leaks, but be careful not to overtighten them. Still the straight fitting with washer are correct and best.
Also, very late model 4L60E (e.g. 2010) have a different thread again - in these an AN-6 male to male with O-ring works perfectly.
I use AN braided hoses and one 90 degree and one 45 degree fitting work best.
https://ls1tech.com/forums/automatic...-fittings.html
They are 1/8" STRAIGHT fittings, not tapered. The normal AN-Pipe adapters are tapered and could potentially crack the case. I don't think the right adapters are sold by Summit; you can buy them from various ebay sellers - search for "4l60E AN fittings" and you will see pairs for $18.
In reality I and many others have used 1/8" NPT tapered fittings without problems or leaks, but be careful not to overtighten them. Still the straight fitting with washer are correct and best.
Also, very late model 4L60E (e.g. 2010) have a different thread again - in these an AN-6 male to male with O-ring works perfectly.
I use AN braided hoses and one 90 degree and one 45 degree fitting work best.
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