Getrag F23 5spd swap Guide
Want your V6 99-05 N-body with a manual transmission? It's actually rather simple to be honest, this is just a guide and NOT a step by step how to
before you even start reading let it be known you WILL need a welder or be nice to a friend with one to make a front mount lol PART'S LIST: 00-05 N-Body 4cyl 5speed parts(2.2 or 2.4) -Axles -Shifter and cables -Clutch pedal -Transmission mounts(rear and driver side) -Clutch master cylinder -Clutch slave cylinder -4cyl 5spd subframe(saves you from making a 2nd mount for the driver side) 00-02 J-body parts(2.2 only NOT ecotec) -Getrag F23 transmission -Flywheel -Clutch -Flywheel and pressure plate bolts Mounting transmission to your subframe The J-body F23 has the holes for N-body 5spd mounts for the rear and driver side however the rear mount needs the holes tapped for some bolts pictured below the N-body bolts are also slightly longer then they need to be, shortened roughly 1/4" and the first 1/2" or so of the bolts have no threads so don't worry about screwing them up while cutting shorter or I guess you can use a washer or 2 For the rear mount I recommend a poly insert meant for a 5spd J-body(95+) slides right in but the bolt for the N-body is slightly thicker so you need to drill the sleeve out slightly. I purchased mine from http://www.energysuspensionparts.com/ part #7515 J-body bushing in N-body mount and sleeve drilled out(15/32" drill bit) hopefully you have a vice to clamp the sleeve in while boring it out and remember to go SLOW and use some sort of lubricant(wd40, liquid wrench etc) Front mount needs to be custom made, this is what I'm running transmission mounted to 4cyl 5spd subframe Mounting clutch pedal and shifter/cables I gutted everything except for the dash Extremely hard to get a picture under the dash of the clutch pedal mounted but this is a picture of all the pedals from a 4cyl/5spd N-body, EVERY N-body has that big chunk of aluminum under the dash and you can kind of see how it mounts mounted in car highly recommended removing your PCM/holder to install the clutch pedal, I THINK it's the only way to do it with the dash in the car still... shifter bolts right in with no modifications and shift cables come out the same hole as your auto shift linkage clutch master cylinder needs a 1.25" hole drilled in the firewall those 2 bolts are there from factory once you get your fusebox out of the way, do your best to center the hole and if off slightly don't worry about it as its rather simple to get a die grinder or dremel in there to do some slight trimming also those factory bolts will be to short to bolt the master cylinder on, bring 1 to the parts store and get some 1/4" longer interior back together for the most part, I left the automatic brake pedal and cut it to fit the 5spd brake pedal rubber |
for some reason the pedal spacing looks a little odd...
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Nice right up man! Maybe in the future if my trans goes I'll consider this! I have a 5 speed alero sitting in the driveway so I'm halfway there haha!
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Great write up! Theres a lot good info here.
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Quote:
I kind of thought the same thing and thought maybe it was because I didn't bother swapping in the 5spd brake pedal but then found some stock pictures of the 4 banger/5spd N-bodys and it looks the same as mine with the clutch pedal being slightly lower then the brake pedal and thanks guys! Tim I might attempt to make more front mounts but if I do it will probably be a solid mount and not like the 1 I have in the car now with the poly... wouldn't sell them though until I can beat on one in my car when it comes back out this summer |
also it was brought to my attention that the flywheel bolts I posted in my original write up might not be the best option to go with, I haven't seen any posts about failures but ATP apparently switched to a overseas supplier now and quality control might not be as good as there older US supplier....
http://realfierotech.com/phpBB/viewt...hp?f=3&t=17718 no issues for me but I only have 1500kms on my swap and not sure if I got US or oversea bolts, if you didn't read the thread ATP does still have some stock of US made bolts floating around which SHOULD be better from my understanding... I plan to rip my drivetrain out shortly, if I have the US bolts I'm keeping them if not trip to the dealership or hardware store for some 10.9 bolts |
Anybody have any idea what to do for a pilot bearing? Got my swap started and I'm to the point of the pilot bearing and I'm not sure what to do.
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No pilot bearing to mess with just bolt the flywheel on and use your clutch alignment tool and should be good to go!
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Thank You! Will update the forum when my swap is complete.
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Just one more question, if I read this correctly,
"you MAY have to do more wiring if you don't have your PCM tuned already" If I do the extra wiring, I won't need an ECU tune? |
And where did you source the part of the rear transmission mount that bolts to the trans? I can't seem to find one.
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