diff oil seal replacement - oil slinger also?

lovetoski · 06-26-08, 09:59 PM

Hi all,

I'm replacing the oil seal on a used 4.10 diff going into my 60. I'm replacing the oil seal as PM. I've never done this before, so not sure about the oil slinger. FSM shows it to be just below the oil seal, and that both are non-reusable. I'm not messing with the bearings on this diff, just replacing the oil seal to ensure that I don't spray fresh gear oil all around under my truck. Question is, do I need to replace the oil slinger also, or just the oil seal?

Thanks in advance for the advice!

FJ60Cam · 06-26-08, 10:23 PM

I'm pretty sure you only change the seal. That's what I did to the used diff that I put in the front. No problems yet.

jacksfj62 · 06-26-08, 10:30 PM

X2 on replacing the seal. Just did the same and no issues.

06-26-08, 09:59 PM	#1
lovetoski IH8MUD Lifer Join Date: Jul 2003 Posts: 2,637	diff oil seal replacement - oil slinger also? Hi all, I'm replacing the oil seal on a used 4.10 diff going into my 60. I'm replacing the oil seal as PM. I've never done this before, so not sure about the oil slinger. FSM shows it to be just below the oil seal, and that both are non-reusable. I'm not messing with the bearings on this diff, just replacing the oil seal to ensure that I don't spray fresh gear oil all around under my truck. Question is, do I need to replace the oil slinger also, or just the oil seal? Thanks in advance for the advice! __________________ Doug G Seattle, WA TLCA#12671 1994 fzj80, 275,000 miles, 285X75/15, Billy's, dual batteries 1987 fj60, 310,00 miles, 3" lift, 33X10.50's BFG MT, dual battery, rear drawers, CB, tuffy, , lockright, 4.10's and H41 soon

06-26-08, 10:23 PM	#2
FJ60Cam IH8MUD Addict Join Date: Nov 2004 Location: Memphis, TN TLCA# 16341 Posts: 971	I'm pretty sure you only change the seal. That's what I did to the used diff that I put in the front. No problems yet. __________________ Cameron Mosley '85 FJ60 - Daily Driver

06-26-08, 10:30 PM	#3
jacksfj62 IH8MUD Junior Join Date: Dec 2007 Location: N.Las Vegas Posts: 76	X2 on replacing the seal. Just did the same and no issues. __________________ '88 FJ62 2 1/2"OME 33x10.50 BFG ATs (5.3 Vortec/4L60E arrived working on remaining parts) '71 IH Scout II (working on Injection) Yes my says the Cruiser needed more PUNCH but WOW the Honey Do List got BIG

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