BW 1356 Rear Seal - Ford Truck Enthusiasts Forums

Pre-Power Stroke Diesel (7.3L IDI & 6.9L) Diesel Topics Only

BW 1356 Rear Seal

Old 05-28-2011, 10:57 AM
bradleydm is offline
New User
Thread Starter
Join Date: Apr 2011
Location: Iowa
Posts: 7
bradleydm is starting off with a positive reputation.
Question BW 1356 Rear Seal

I have a 1990 F250 with a BW 1356 Transfer case. The rear seal was leaking and when I replaced it the old seal had a metal sleeve in the inside that slid out. It has a hole and "x" shaped grooves cut into it. I put it back in with the new seal thinking it was to prevent wear on the rubber or something but not really understanding how it would seal. Well it didn't seal and now I think it's made the seal larger on the inside so the rubber won't contact the drive shaft surface. Is it supposed to have a metal sleeve for the drive shaft to ride on for wear resistance or is it supposed to just contact the rubber part of the seal? I have a slip yoke rear drive shaft. Thanks for your help.
Old 05-28-2011, 11:00 AM
Aune163rd's Avatar
Aune163rd is offline
Join Date: Sep 2010
Location: Missoula, Montana
Posts: 4,397
Aune163rd has a very good reputation on FTE.Aune163rd has a very good reputation on FTE.Aune163rd has a very good reputation on FTE.
I know that there is supposed to be a new one that goes in with the new seal. my 1356 leak is just wet around the seal so i dont worry too much cause I really only use the 4x4 in the mountains during huntign season when the weather is crappy, or out on the ranch pulling my buddy's skid-steer and powerjoke out of the mud,
Old 05-29-2011, 12:33 AM
wreckinball's Avatar
wreckinball is offline
Join Date: Apr 2009
Location: Malahat/Cowichan Valley
Posts: 4,086
wreckinball is gaining momentum as a positive member of FTE.
if the old sleeve fell out, then it needs to be replaced. Might need to replace the output shaft housing if it was left to wear too long. Which by cooincidence i have lol. But either way, yes it needs the sleeve, if it has wobble in the shaft for whatever reason, it will eat that sleeve alive. Need to fix the wobble if so. I went through all of this and four rubber seals thinking it was the seal. It can be brand new and leak the same day if there is wobble. The rubber seal will have a circular spring that hold the rubber to the shaft surface to keep the oil in. the brass/metal sleeve is to keep the shaft from wearing away the housing surface. Again i went through all of this, i have the exact same setup.
Related Topics
Thread Starter
Last Post
Ranger & B-Series
07-10-2017 08:11 PM
6.0L Power Stroke Diesel
05-06-2017 03:15 PM
Gary Lewis
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
12-04-2016 09:10 AM
1987 - 1996 F150 & Larger F-Series Trucks
09-10-2016 11:38 PM
Tony G
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
09-05-2000 11:17 AM

Thread Tools
Search this Thread
Quick Reply: BW 1356 Rear Seal

Contact Us About Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.