How to Build a Hybrid MY8/M17 Muncie, and the Differences Between the Two (Page 2/4) Will APR 06, 05:27 PM Good pics. I've built one before, but hadn't done the write-up. The Muncie is dirt simple compared to the 282. olejoedad APR 06, 09:50 PM Very excellent information, this is very usefull. I have been planning on using this setup on my 4.9 swap. Thank you! Raydar APR 06, 11:01 PM Excellent! I'm thinking that this might be something I'd like to try at some point. Does anyone know if there is any provision for the later magnetic VSS available that will work with this trans? Will APR 07, 09:44 PM quote Originally posted by Raydar: Does anyone know if there is any provision for the later magnetic VSS available that will work with this trans? Yes. AFAIK, it uses the same VSS and drive gear as the 282. This means you just pop the drive gear off the diff carrier, press the reluctor onto the diff carrier and install the magnetic VSS in place of the gear driven VSS. Will APR 07, 09:48 PM quote Originally posted by NJD85GT: Output Shaft Disassembly, MY8 Using support plates behind 4th gear, press on the end of the output shaft to remove 4th gear and the left hand bearing (Figure X). Remove the snap ring retaining 3rd gear. quote Originally posted by NJD85GT: Output Shaft Disassembly, M17 Using support plates behind 4th gear, press on the end of the output shaft to remove 3rd/4th gear and the left hand bearing (Figure X). Third and fourth gear is a one piece gear on the M17 transaxle. As has been alluded here, the M17 uses a single cluster gear for the output sides of 3rd and 4th. The MY8 uses individual gears, pressed in place and retained with snap rings. The output shaft splines are DIFFERENT for the two configurations. Thus it is not physically possible to install the MY8 gears on the M17 shaft (or vice versa), even if you wanted to. Will APR 07, 09:50 PM quote Originally posted by olejoedad: Very excellent information, this is very usefull. I have been planning on using this setup on my 4.9 swap. Thank you! Any engine mods? I'd be interested to see if a well-tuned, well driven 4.9 with better matched gearing than the 282 could crack 13's in the quarter. olejoedad APR 08, 06:51 PM Not a drag racer anymore, if I were taking a 4.9 Fiero to the drag strip it would be my 4.9/4T60E Formula. With the 3.33 final in the 4T60E. it pulls better than most 4.9 swaps, the PO claimed a 7.8 sec 1/8 mile on 225/50/15's at Nashville. I've never had it to the track. Will APR 09, 09:25 AM quote Originally posted by olejoedad: Not a drag racer anymore, if I were taking a 4.9 Fiero to the drag strip it would be my 4.9/4T60E Formula. With the 3.33 final in the 4T60E. it pulls better than most 4.9 swaps, the PO claimed a 7.8 sec 1/8 mile on 225/50/15's at Nashville. I've never had it to the track. I've read RockCrawl saying the deeper final drive in the automatic didn't really do much for the car's 1/4 mile performance, but did affect gas mileage. In Northstar cars, the stick cars are quicker because they're 200# lighter... The weight advantage of the Muncie vs. the 4T60 is only about 150#. I've read anecdotes describing the short gearing of the 282 hurting the 4.9's straight line performance due to it's high torque and low redline; I was guessing that taller gearing would benefit a car with that engine because it's a "puller" rather than a "revver". olejoedad APR 09, 10:27 AM The best gas mileage I've gotten on the interstate is 32 MPG on long runs. Typical fuel mileage averages about 25 with mixed driving. Maybe someday I'll take it to the strip, but it isn't a big priority. Back to the topic of this thread, I was thinking the hybrid 4 speed would make for good autocrossing, track days and also keep the RPMs down when driving on the highway. NJD85GT APR 13, 01:19 AM I be done, I think. Hopefully no errors. Nate