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I am trying to find the correct shifter knob top for my 06 ss cobalt, w 5 speed manual
I have complete two shifter assemblies, one org knob and one new knob.
GM claims the new one is correct it is not.
The hole in the shifter knob is a larger diameter then the splined shaft of the actual shifter. there fore the knob drops on loosely and spins.
the top screw will hold the knob down but not stop it from spinning, I thought about cutting a slot and putting in a key way or wrapping the shaft etc to prevent the knob from spinning but there has to be the correct knob available somewhere.
see the pics. any one have this issue and know the correct part #.
I have the original knob and it has a smaller ID and fits the spine shaft perfectly, but all the threading and material is all worn, so I wanted to put on new knob on.
I have a full shifter stock assembly from an 05 SS. I might also have a TWM short throw I can let go of if I can locate it. If you're not interested in those you may get lucky on crateengindepot.com for part. Tom at CED is very helpful and maybe a able to find what you are looking for.
the other odd thing I have found is all the shifter "guide" I find that are said to be correct are blue, and my original shifter guide is white and not shaped or the same size as the blue ones.
I did check with CED for these parts but was they were unable to locate these parts
what condition is the knob on that 05 shifter assemble, also is the white guide broken or chipped, mine was that's way I was trying to locate that stop guide. why is that a parts car an dhow much would you want for it?
what condition is the knob on that 05 shifter assemble, also is the white guide broken or chipped, mine was that's way I was trying to locate that stop guide. why is that a parts car an dhow much would you want for it?
The knob and top plate are worn. It had 125k miles of wear when it was parked. As far as I could tell everything looked to be good. I didn't get in an pull it out yet. It's a parts car because of rust basically. Also the previous owner was moving out of town and needed it gone. He didn't have the title so all I have from him is a bill of sale. I never intended to register and drive it. I just wanted the engine and trans for my Ion Redline. I don't know what they actually go for I'd say like 75 and shipping? Or make an offer.
Pretty sure I have my knob and assembly in a box around here somewhere. Been that way since around 2006 or so. I've had a B&M since then.
The shifter knob that doesn't fit might be from an LNF. Switching to the LNF shifter box might be an upgrade; I thought I remembered Powell talking about that many years ago, but can't remember exactly.
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Found it in my garage. Shifter shaft measures 0.465", while the shift knob hole starts at 0.500", but tapers down. My digital caliper didn't have the reach to get further down the hole.
I thought that might be the case, so I ordered form gm a complete lnf shifter assembly, that has the larger "available and replaceable" blue shift guide stop, but it didn't come with the knob. of course, special order so they wont accept it returned (300 dollars gone their) so then I ordered the knob they claimed is correct for that LNF shifter I ordered form them and guess what it too is the lager style and doesn't fit on the shaft properly.(also cant return (another 100 gone) I also bought another knob from a place claiming the knob is for a LSJ, and it too is too big... then I bought a complete used shifter that had the blue stop guide and it had the smaller knob, but of course all the material and stitching is worn worse then the org I have. ridiculous. I have contacted three different gm parts suppliers and they know nothing then what the computer tells them, and they claim based on the vin # that this is the correct and only part gm has for this application. so now I have a bunch of shifters, none of which are correct, and none of which have a decent knob. I think ill resort to machining a groove in the new shift knob top, and cutting a slot in the blue stop guide shaft, put in a key way to stop rotation then snug donw with the factory torqx screw. so I can mount the knob and since I have 4 blue stop guide replacements and none of the white stop guides.
they try to tell me that mine "must be an aftermarket" as gm part number on the shifter is 25815049 which is discontinued and that the knob is part number 25815051
both of which I have ordered and both of which are different then my stock one. I also found a 25815049B shifter assembly but no one can tell me if its meant for a lnf, lsj and or if it has the blue stop guide and smaller or larger hole knob and if it would be compatible.
USMCFieldMP is your white guide stop in good condition if so I would like to buy it...
I don't remember ever hearing about different sized shifter shafts in these cars. No one seemed to ever swap stock shift knobs either, but changing to aftermarket knobs was common.
I'm pretty sure it's in good condition; worked fine when I took it out. I'll check when I get home to be sure.
it seems that no matter the "version" of shifter, all the shafts are the same, but its the damn knob it self, all the replacement new ones I can find are the ones with a large hole which just falls onto the shaft and doesn't allow the ribs on the shaft to even make contact. if I could just find a new shift knob with the smaller hole that would solve all. but the white guide would be nice to have as well. I really don't want to go aftermarket one this car. I have plenty of modified cars, (too many , just ask the wife) I'd really like to keep this one stock. appreciate all the responses
Have you looked at any parts diagrams for something like a 2010 SS? I'm wondering if they updated their design and started putting some sort of plastic spacer or something on them. In the early days (05-07), the knobs used to just come off on their own. I made an aggressive 2-3 shift once and the knob popped off in my hand - that's part of why I switched to the B&M.
actually I have, all generations I can find of the cobalt's, along with many other cars that I know run the same engine, trans, etc. Pontiacs, Saturn redlines, hhr's, saab's and anything with the MU3 transverse version of the F35 trans.
sadly none seem to match up, having the same reverse lock out and shifter setup and or offer a different part # that might be correct for this part. I have two shifter knobs that are heavily used but have the smaller splined hole that fits the shafts perfectly, but no part #.
that was my thought too that maybe they used 05 left overs on some 06 builds (similar to what I found when restoring my 71 cuda that mopar used some 70 parts etc. parts) I have not been able to locate anything that shows a sleeve for this knob being used.
I really don't want to go aftermarket one this car. I have plenty of modified cars, (too many , just ask the wife) I'd really like to keep this one stock
however,
When searching via Saab trans parts, I found what appears to be the same shifter knob that is used on a Saab 9-3 as on my 06 ss cobalt with the smaller splined shaft hole in knob....$170 per each version from Saab but about $15 per version off ebay. I found multiple versions that appear to have different style and size mounting holes for the shifter shaft. some larger with 5 flats, smaller with flats, and even smaller with spline like almost 12 point socket type hole. so I have ordered all three versions of the knobs listed some say 5 speed some 6 speed but all knobs look to be same style. fingers crossed that one of these fit one of my setups. even if one of these are too small I can step drill out the center to fit one of mine. But they appear to all have the right size, shape and recess for reverse lockout, I will update as soon as they arrive. for any one else having similar shifter knob compatibility issues.
well, that didn't work the saab version has no hole in the top for the set screw, while the splines fit perfectly, it would appear they relied on that to hold the knob on the shaft. the top plate is not "removable" like the gm style, the lettering is large and has a different font, if you pry off the top plate it simple breaks. I then ordered another complete shift assembly from a gm place part # 25815049 (lsj) listed for 06 ss cobalt 2.0 sc, they claimed they had one in stock, they took my money... I waited a month, then they now told me its discontinued by gm, which I knew but they still listed it in stock as everyone else was out. so I now just ordered a complete assembly part # 20763152 which is technically for the 08-10 LNF ss version, but I hope it fits and comes with the knob attached, as this is getting ridiculous.
Has anyone put a LNF 5 speed shifter into a LSJ?
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The hole in the shifter knob is a larger diameter then the splined shaft of the actual shifter shaft. there fore the knob drops on loosely and spins.
the top screw will hold the knob down but not stop it from spinning. all of the gm part# knobs have a hole that is too big.
It's been done and is a small upgrade. I don't know if the details of how to do it are on here, but I'd imagine they are. I have to imagine it's fairly straightforward though.
finally received the latest shifter assembly from GM I ordered (about 350 dollars) it is complete although it is for a lnf 08-10 not a lsj 05-06 but I will attempt to install it, as it came with the correct knob! I know GM lists different shift cables for the lnf and lsj 5 speed but should be able to make them work.
finally received the latest shifter assembly from GM I ordered (about 350 dollars) it is complete although it is for a lnf 08-10 not a lsj 05-06 but I will attempt to install it, as it came with the correct knob! I know GM lists different shift cables for the lnf and lsj 5 speed but should be able to make them work.
They're the same; I think the LNF's are just an updated version.
so the 2008-2010 LNF SS turbo version shifter works just fine as a replacement for the 2006 LSJ supercharged SS version.
the shifter is almost identical, only a few pieces like the guide stop and knob attachment are different. it was easy to remove the old and install the new also, it is compatible with the LSJ shifter cables, I adjusted both to get a smooth easy shift into and out of every gear, along with a nice reverse function.
test ran car seems good but still when the purge solenoid under the hood begins to click the idle becomes erratic and engine will die if throttle is not feathered.
thoughts?
08-31-2020, 08:14 AM
