Np203 input gear retainer seal... easy Q - Pirate4x4.Com : 4x4 and Off-Road Forum

Lil'John · 03-04-2003, 03:18 PM

I am finishing off a refurbish on my NP203 gear reduction box and I'm scratching my head on the input gear retainer seal.

The service manual I have shows one seal. I finally pulled mine apart and found two seals.

FWIW, the NP203 was attached to a TH400 tranny. I may have 2 other retainers I could pull apart.

What is the correct way? One seal? Two seals? Did my retainer get fawked up and someone play with it?

Stephen · 03-04-2003, 08:22 PM

You'll find them both ways, either one double lip seal or two opposing single lip seals. Either way works fine.

Lil'John · 03-05-2003, 01:05 PM

Thanks Stephen.

I pulled my spare out and it was also the two singles.

But when I got the seal I ordered, it was the double lip seal.

Definately glad I got confirmation on this... I would hate to have blown up at the parts man for what would have looked like the wrong seal

03-04-2003, 03:18 PM	#1 (permalink)
Lil'John Zeus of the Sluice Join Date: Feb 2000 Member # 278 Location: Under a N. CA carport wrenching on my FJ55 Posts: 4,565	Np203 input gear retainer seal... easy Q I am finishing off a refurbish on my NP203 gear reduction box and I'm scratching my head on the input gear retainer seal. The service manual I have shows one seal. I finally pulled mine apart and found two seals. FWIW, the NP203 was attached to a TH400 tranny. I may have 2 other retainers I could pull apart. What is the correct way? One seal? Two seals? Did my retainer get fawked up and someone play with it?

03-04-2003, 08:22 PM	#2 (permalink)
Stephen Granite Guru Join Date: Oct 2000 Member # 2092 Location: Carbondale, CO Posts: 856	You'll find them both ways, either one double lip seal or two opposing single lip seals. Either way works fine. __________________ Stephen Watson www.offroaddesign.com #4488 KOH '12 12th overall KOH11 28th. It's a finish! KOH11 Sportsmanship Award. Friends & partners who helped: Offroad Design, Pacific Fab, King, Baja Designs, TrailReady, Amsoil, PSC, Tom Woods, Bighorn Graphics, Superior, Optima

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03-05-2003, 01:05 PM	#3 (permalink)
Lil'John Zeus of the Sluice Join Date: Feb 2000 Member # 278 Location: Under a N. CA carport wrenching on my FJ55 Posts: 4,565	Thanks Stephen. I pulled my spare out and it was also the two singles. But when I got the seal I ordered, it was the double lip seal. Definately glad I got confirmation on this... I would hate to have blown up at the parts man for what would have looked like the wrong seal