Full Floater 11 Posted April 6 Share Posted April 6 Hi. Picked up a new to me 76 R685 single axle. I thought it was a 237 but the tag says ENDT-675, 235hp and a 3B engine family. Can someone explain to me the difference in 237 and 235/ENDT-675 and 673? And what is the 3B engine family all about? Thanks. Quote Link to post Share on other sites
Freightrain 2,531 Posted April 10 Share Posted April 10 Makes me wonder why all the slight differences that were available and what the application was for. Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to post Share on other sites
doubleclutchinweasel 580 Posted April 10 Share Posted April 10 Maybe "B" for "brake" (Dynatard)??? Anyway, it has been a topic for discussion before. Quote "Eagles may soar, but weasels don't get sucked into jet engines." Link to post Share on other sites
Freightrain 2,531 Posted April 10 Share Posted April 10 Lol.....didn't even remember starting that question back when I did my motor swap. Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to post Share on other sites
Full Floater 11 Posted April 12 Author Share Posted April 12 I believe the B is related to having a Dynatard, upon further research...however this one does not have the wires going to the valve covers, nor a switch on the dash... As for application, its in a single axle 1976 R685 that was left for dead. I bought it and am bringing it back to life, in hopes of giving it another round. Quote Link to post Share on other sites
doubleclutchinweasel 580 Posted April 12 Share Posted April 12 On 4/10/2021 at 3:52 PM, Freightrain said: Lol.....didn't even remember starting that question back when I did my motor swap. Funny! Quote "Eagles may soar, but weasels don't get sucked into jet engines." Link to post Share on other sites
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