Hello all,
I've just removed the 5 speed manual MK7(?) from my '97 Z24. The spider gears are toast. I would like to use the spider gears from a Geo Storm, which I can get the tranny for $150. I'm having trouble finding references to consult, with alldataDIY.com the best source so far. Does any one know if I can just crack the case halves apart with out tearing down the main part of the trans??
Thanks,
Bob
nope, you need to pull the side cover off, remove the allen bolts and torx bolts to get the end apart, and the case to open (once you pull the case bolts)
Its hard to find any good info on GM transmissions online...... one tip..... the isuzu trans is pretty much the same one used on most GM 4 cylinders, going back pretty far...... I'm sure you can find at least one car forum that would cover a trans overhall.
SPD RCR Z -
'02 Z24 420whp
SLO GOAT -
'04 GTO 305whp
W41 BOI -
'78 Buick Opel Isuzu W41 Swap
Like SpeedRacerZ said, take the small outer cover off. You will find two large nuts, take those off and the small gears under them. Be carefull, one has a synchro ring, try to keep it assembled. Next, there are (I believe) #40 torx screws holding the plate down under those gears. These are a real bear, I was afraid to use an impact wrench on them, but I ended up having to use it for one of them, I was afraid to strip the head. Worst case, easy drill-out.
Also, the three "bolts" right in a line on the outside of the case, take these out, pull the springs out inside and using a magnet or a small screwdriver w/ a dab of grease on the end pull out the balls. This is way better than forgetting and watching the balls go bouncing across your garage floor (yep, me).
Now I believe this is all for this step; put the tranny so that the bell housing side is flat on the bench, and the top half will slide off. All of the gear assemblies stay mounted to the bellhousing half of the tranny.
Hope this helps
Nick
Thanks again. I'm down the Torx bolts now. This thing is alot more complicated than the old Jeep trans I'm used to!
Yes, but at least there are no needle bearings. I tore down my T-90 from my 56 Willy's CJ5 to swap out the input shaft for my 283 SBC swap, and ended up with needle bearings everywhere
But it all ended up good in the end.
Yeah, those needle bearings are a pain. The last one I rebuilt was back in the Jeep and I was putting up the transfercase when the main shaft pulled out eniugh to let 'em drop into the bottom of the case.
