Wrong Flywheel From Autozone, Need Help!

[Trujillo107]

I just bought a 90 2wd comanche 4.0l. I'm putting in a new clutch and flywheel in but the flywheel that autozone and advanced auto has doesn't work. They look very close but the bolt pattern doesn't line up. My next solution was to get the flywheel turned but the only place near me that still machines auto parts won't be able to do it for 5 weeks. Does anyone know where I can get a flywheel or the correct part number for one of the auto parts stores. Oh and I'm not sure which tranny I have. It's a manual 5 speed but I know there was a couple variants for that year just not sure which. If someone could tell me where to look or how to find out, that would be greatly appreciated to. Thanks.

TJ.

[Jeep Driver]

Which store and which part number do you have for the one that does not fit?

[Trujillo107]

The one I bought was from auto zone and the part number was FW91004.

[Jeep Driver]

http://www.autozone.com/autozone/parts/1991-Jeep-Comanche-2WD/Flywheel-Manual-Transmission/_/N-itxeiZ6o2oa?filterByKeyWord=fly+wheel&fromString=search

 

 

91 was a change......if you have a late production 90  you have need the 91 fly wheel.

[Trujillo107]

Damn, I didn't even think about that! The man info sticker is missing but I'm gonna head there ASAP to check it out. I'll report back with the results, thanks again!

[danbyrambler]

Good luck with AZ - - JIC you try the FW91008 you can also get free 2 day shipping with the trial offer & the $25 gift card rebate (SALE25 Promo Code) - Card takes about 2 weeks to arrive - 

[Trujillo107]

Thanks I had to order it from the hub store. Here's another question, what are the teeth on the inner plate for. I know the outer plate teeth are for the starter. If the bolt pattern lines up the only difference will be the teeth on the inner plate.

[eloysmanuel]

The inner teeth are for the CPS

[Trujillo107]

Ok then the inner teeth have to match as well or I'll have a misfiring problem, right? Or am I over thinking this?

[Jeep Driver]

Ok then the inner teeth have to match as well or I'll have a misfiring problem, right? Or am I over thinking this?

You are correct.

[Trujillo107]

Ok guess I'm gonna have to make the drive and get the original turned.

[nitroxsteve]

I believe the flywheel will only bolt on in one position. Did you try spinning it around to the next hole until you tried all the positions?

[Jeep Driver]

I believe the flywheel will only bolt on in one position. Did you try spinning it around to the next hole until you tried all the positions?

Never thought to ask that.......just assumed he knew.........

[JeepcoMJ]

Also, if i

The title says 1990, DO NOT put a 91 flywheel on. It will not even attempt to start.

 

 

Your issue is that you are aligning the flywheel improperly

[cruiser54]

Also, if i

The title says 1990, DO NOT put a 91 flywheel on. It will not even attempt to start.

 

 

Your issue is that you are aligning the flywheel improperly

This^^. There is one offset mounting hole so it will only go on one way. It's slight, but it's there. 

[Trujillo107]

I tried spinning the new flywheel and all but 1 bolt would thread, it close but no dice. I got the original turned today and everything is going back together without a problem, thanks for all the help guys!

[Tactical Bacon]

Why not lay the new one on top of the old one and line the bolts up that way? I mean, to me it just makes sense to compare new parts and old parts side by side when you can.

[JeepcoMJ]

The flywheels are concave, so a straight machine job could give you a problematic clutch when you put miles on it.

[cruiser54]

The flywheels are concave, so a straight machine job could give you a problematic clutch when you put miles on it.

Supposedly that's an issue but I've never experienced it. we resurfaced flywheels at the dealership all the time. 

[JeepcoMJ]

I have experienced slip after as little as 3000 miles on resurfaced 4.0 flywheels. Swapped flywheel with used, clutch still looked new, solved issue