E34 5 speed 535i gearbox

ChrisM · Post by **ChrisM** » Tue Jan 27, 2009 12:30 am

Yay or nay?

Will the e34 gearbox mate with my m30b34? I don't have a fuel system yet so its open in that respect. I'm pretty sure the engine is from an E28.

Mike W. · Post by **Mike W.** » Tue Jan 27, 2009 11:56 pm

It will bolt up to the engine just fine, however I'm not sure what driveshaft you will need. One from an 86-88 E28 5 speed will probably work, but I'm not at all sure. It's a Getrag G260/6, a decent transmission, but without provisions for either flywheel sensors for E28 era Motronic, or any sort of speedo drive.

ChrisM · Post by **ChrisM** » Wed Jan 28, 2009 4:50 am

That would just mean I would need the l-jet injectors and fuel rail right? Shouldn't be too much trouble, I would probably need the same if I keep the original gearbox anyway

Mike W. · Post by **Mike W.** » Wed Jan 28, 2009 10:04 pm

ChrisM wrote:That would just mean I would need the l-jet injectors and fuel rail right? Shouldn't be too much trouble, I would probably need the same if I keep the original gearbox anyway

Well, the upper timing cover and distributor too, it's all tied into one on motronic, but it's not a big deal. Actually the E12 intake manifold too, while it's possible to make the E28 one work, you would need adapter brackets to hold the rail in place and a different power brake booster to clear the later manifold. Think pan thru valve cover, but not the stuff hanging off the side.