jericho Posted October 12, 2007 Share Posted October 12, 2007 I've got the 3 bolt disco flange off,but the new 4 bolt one doesn't appear to fit - It slides on the splines,but goes on too far,so the washer and nut wont tighten down on it. Should there be a spacer or washer dehind the flange? Is there more than one type of 4 bolt flange that would fit a disco/defender standard diff? What have I done wrong? Jerry. Quote Link to comment Share on other sites More sharing options...
Bull Bar Cowboy Posted October 12, 2007 Share Posted October 12, 2007 MicroCat shows the four bolt flange as FRC3002 ..................... It appears that the 3 or 4 bolt flanges are options and directly interchangeable ................. I cant see any spacer options. There is also FTC5322 listed for 90's as well as the above ..................... but FRC3002 is correct for the disco Ian Quote Link to comment Share on other sites More sharing options...
Marc1187 Posted October 12, 2007 Share Posted October 12, 2007 I thought there was a spacer you had to fit behind the 4 bolt flange, cant be certain but there was a thread or someone mentioning on here somewhere not so long ago. Quote Link to comment Share on other sites More sharing options...
Bull Bar Cowboy Posted October 12, 2007 Share Posted October 12, 2007 Yes, you could be right ...................... the pinion spacer is part number 539745 and sits behind the oil seal It doesn't say that its used with the 4 bolt flange, but the pictures show the 3 bolt flange to be longer, so I guess the spacer is only used in the 4 bolt option Ian Quote Link to comment Share on other sites More sharing options...
Kev Baldwin Posted October 13, 2007 Share Posted October 13, 2007 Yep. You need the spacer that sits under the seal to swap from three bolt to four bolt flange. Quote Link to comment Share on other sites More sharing options...
jericho Posted October 13, 2007 Author Share Posted October 13, 2007 Thanks for the help everyone. Will order spacer monday. Quote Link to comment Share on other sites More sharing options...
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