Jomorisn Posted March 4, 2019 Share Posted March 4, 2019 I'm looking at 1999 RD 690S trying to find the engine and axle specs on this truckVin # 1M2P289C7XM029160 thanks in advance John Quote Link to comment Share on other sites More sharing options...
1 JoeH Posted March 5, 2019 Share Posted March 5, 2019 Rears are 44k, that's what S indicates in rd690s. St would be 38k rears, sx would be 55k rears. According to the below website, the 90 in 690 indicates a maxidyne engine? But I didn't know they still made maxidynes in 1999. Maxidynes we're usually 300hp I think. Someone more knowledgeable will probably chime in. The 6 in rd690s indicates a standard highway frame. Should be a double frame, that's what my 95 rd688s has. Watch out for rust separating and cracking the frame flanges, that's a $25,000 dealer replacement job. https://onlineuniversity.bloomfire.com/posts/2387484-mack-trucks-vin-decoder 1 Quote Link to comment Share on other sites More sharing options...
1 Mackpro Posted March 8, 2019 Share Posted March 8, 2019 It’s a ETECH E-7 300hp with a T2060 Mack 6 speed trans. Buil 1/21/1999. Mack rears with 5.02 gears. 44k rear camelbacks and showing a 14.3K front axle 2 Quote Link to comment Share on other sites More sharing options...
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Jomorisn
I'm looking at 1999 RD 690S trying to find the engine and axle specs on this truckVin # 1M2P289C7XM029160 thanks in advance John
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