260DET Posted October 19, 2009 Share Posted October 19, 2009 On the crown wheel, ring gear, take your pick. Marked in the usual white. Thing is the gear has 39 teeth, don't know what the pinion has but if 11 then the ratio would be 3.55:1. Any idea as to what pinion the 39 teeth gear matched? Quote Link to comment Share on other sites More sharing options...
JMortensen Posted October 19, 2009 Share Posted October 19, 2009 There should be another mark on the ring gear which has a string of numbers and part of it is the ring and pinion count. It might say 39:10 or 10:39, I can't remember which order they are in, but I think in the US a 10 tooth or 11 tooth pinion would be most common. You can always mark the ring and mark turn the pinion and see how many revolutions it takes for your marks to come around. Quote Link to comment Share on other sites More sharing options...
260DET Posted October 19, 2009 Author Share Posted October 19, 2009 Yeh the numbers were a bit messed up Jon, seemed to be stamped 39:11 but marked 369 in white as they do. So it will be either 39:11 or 39:10 then? Quote Link to comment Share on other sites More sharing options...
JMortensen Posted October 19, 2009 Share Posted October 19, 2009 Yeh the numbers were a bit messed up Jon, seemed to be stamped 39:11 but marked 369 in white as they do. So it will be either 39:11 or 39:10 then? The 39:11 stamp would indicate that it is 39:11. Quote Link to comment Share on other sites More sharing options...
zcarnut Posted October 19, 2009 Share Posted October 19, 2009 The numbers “in white†are made by the factory before the differential is assembled and do not indicate the gear ratio. As Jon said, the ratio is stamped into the ring gear. The 36 is the set number and the 9 is the variation number and refer to dimensions used to properly set the side bearing pre-load. This can be all be found in the service manual. Quote Link to comment Share on other sites More sharing options...
260DET Posted October 20, 2009 Author Share Posted October 20, 2009 Thanks for that Jon and Steve, sorted. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.