Oil Transfer from gear box to Transfer case

1952 - 1968, M38A1, M170, questions, discussions, regarding anything related to the M38a1 series.
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KiwiMB
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Oil Transfer from gear box to Transfer case

Post by KiwiMB » Wed Mar 23, 2022 11:52 pm

Hi folks,
seems my M38a1 NEKAF is transfering oil from the gearbox to the transfer case, I assume this isnt uncommon and stems from the rear main shaft bearing?

Cheers

Ian
Ian J
New Zealand
1941 Willys MB
1953 M38A1 Nekaf
1998 Land Rover Wolf 90


hummermark
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Re: Oil Transfer from gear box to Transfer case

Post by hummermark » Thu Mar 24, 2022 12:46 am

What gearbox is fitted?
Is it a t84 or t90 ?
M1030M1 JP8 diesel
2008 M1113 Humvee
Cushman 53
M10 Achilles
M274 A2 Mule
Matchless g3l
1944 WLA
M1030 KLR 650
Gpa

KiwiMB
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Re: Oil Transfer from gear box to Transfer case

Post by KiwiMB » Sat Mar 26, 2022 3:10 pm

Hiya,
T90 gear box fitted.
Cheers
Ian J
New Zealand
1941 Willys MB
1953 M38A1 Nekaf
1998 Land Rover Wolf 90

KiwiMB
Sergeant Major of the Gee
Sergeant Major of the Gee
Posts: 260
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Location: New Zealand

Re: Oil Transfer from gear box to Transfer case

Post by KiwiMB » Wed May 04, 2022 9:38 pm

Anyone?????????????
Ian J
New Zealand
1941 Willys MB
1953 M38A1 Nekaf
1998 Land Rover Wolf 90

hummermark
Sergeant Major of the Gee
Sergeant Major of the Gee
Posts: 353
Joined: Tue Oct 26, 2010 1:07 pm
Location: London england

Re: Oil Transfer from gear box to Transfer case

Post by hummermark » Thu May 05, 2022 4:17 am

I always thought the t90 had a drain hole drilled internally in the rear of the gear box to allow this ?
M1030M1 JP8 diesel
2008 M1113 Humvee
Cushman 53
M10 Achilles
M274 A2 Mule
Matchless g3l
1944 WLA
M1030 KLR 650
Gpa

CMCS Seabee
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Re: Oil Transfer from gear box to Transfer case

Post by CMCS Seabee » Thu May 05, 2022 4:57 am

It does. Situation normal. Fill tcase first, then top off transmission. Transmission fill plug is a little higher than the transfercase fill plug. THey communicate freely.

hummermark
Sergeant Major of the Gee
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Re: Oil Transfer from gear box to Transfer case

Post by hummermark » Thu May 05, 2022 7:34 am

There was someone on this forum that gave size of hole and where to drill hole in a t84 jeep gear box.
M1030M1 JP8 diesel
2008 M1113 Humvee
Cushman 53
M10 Achilles
M274 A2 Mule
Matchless g3l
1944 WLA
M1030 KLR 650
Gpa

KiwiMB
Sergeant Major of the Gee
Sergeant Major of the Gee
Posts: 260
Joined: Mon Jan 29, 2018 3:53 pm
Location: New Zealand

Re: Oil Transfer from gear box to Transfer case

Post by KiwiMB » Sun May 08, 2022 9:08 pm

Hi guys,
wow, thats great I was not aware that the Gbox and TCase oil communicated fully, I will take my finger off the panic button. :lol: :lol:

Cheers, you guys are the BEST.

Ian
Ian J
New Zealand
1941 Willys MB
1953 M38A1 Nekaf
1998 Land Rover Wolf 90


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