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Does anyone know the size of the wheel axle nut (spindle nut), on a 2007 Corvette? Also, do you know the torque requirements for this nut?
I have read that originally this value was 115 ft. Lbs, and now is said to be anywhere from 140 to 160 ft. Lbs. quite a difference. Also, I’ve read that this nut, when it is new, has a concave face, which flattens out on initial installation. Therefore, it’s supposedly a one and done deal and it should be replaced with a new nut if it has become loose and causing noises. Just looking for confirmation of this info or direction on just what to do with these 2 nuts?
Check in with Dano523. Here is his info from my previous thread.
New axles and nuts call out for 150ftlbs of torque, but used axles have already stretched from the first nut tightening go round/wheel hub spindle shaft heat exspansion, and you only want to tighten the new bolt with red loctite to 120 ft lbs.
Also, there is more than just spinning the old nuts off and installing the new nuts, and you need to pull the axle far enough out to moly grease not only its spines and shoulder, but the hub spines as well.
EDIT: And the socket is available as a free loaner tool from auto parts stores. And, yes, nuts should be a one-time use.
I'd mine replaced by dealer years ago..
IIRC Red Loctite was supposed to sit 24 hrs; yet, dealer called saying car was ready for p/u same day as install.
Dealers.
In any event haven't had any issues w/ loose axle nuts, since.
Yes, nuts are one use only & a 34 mm socket's required.
Good news is replacement nuts are inexpensive as Corvette parts go @ <$10 p/nut.
Check in with Dano523. Here is his info from my previous thread.
New axles and nuts call out for 150ftlbs of torque, but used axles have already stretched from the first nut tightening go round/wheel hub spindle shaft heat exspansion, and you only want to tighten the new bolt with red loctite to 120 ft lbs.
Also, there is more than just spinning the old nuts off and installing the new nuts, and you need to pull the axle far enough out to moly grease not only its spines and shoulder, but the hub spines as well.
EDIT: And the socket is available as a free loaner tool from auto parts stores. And, yes, nuts should be a one-time use.
Thanks for this info. First time I’m hearing about having to move and grease the axle. I was thinking all I needed to do was spin off the old nuts, apply red or blue (depending on who you believe) Loctite and torque the new nuts on.
Its usually the right side/ passenger side axle nut that is always loose, both of my C6's had the problem one had 5k miles & 15k miles. Always replace both axle nuts, i torque to 140 lbs, used red locktite, let car sit 24hrs before driving and you can also put the old axle nuts back on as added security. Around $10 for both, my parts guy said thats the cheapest fix you'll ever buy.
Aren't some 33 mm? I have this vague recollection (like most of my recollections these days).
I've got a new set of axle nuts just in case they were ever needed. Dorman 05107 is supposed to be the replacement. https://www.rockauto.com/en/catalog/...indle+nut,1616
I've also read that some of the OEM nuts were 33 mm. A 33 mm socket will not fit the Dorman 05107 nut - I just checked. A 34 mm socket fits, but seems a bit loose, but not so much that I think it will round off the corners of the nut. A 1-5/16" socket fits the Dorman nut perfectly. I verified this just now.
So, since 33 mm = 1.29921", and 1-5/15" = 1.3125", I'd say the 1-5/16 socket should work for both for a 33 mm nut and for the Dorman. I don't think the fact that the 1-5/16 socket is just over 1/100" larger would be a problem if the OEM nut was 33 mm.
Don't stack the old nuts on the new ones... Just torque it down per spec with a new nut and be on your way. The only time I'd say use loctite is if you're forced to use the old nuts until you can get a replacement.
What is the shoulder of the axle? I've seen two references in this thread but I don't know what it is and will be replacing my left, rear axle and axle seal soon.
Its usually the right side/ passenger side axle nut that is always loose, both of my C6's had the problem one had 5k miles & 15k miles. Always replace both axle nuts, i torque to 140 lbs, used red locktite, let car sit 24hrs before driving and you can also put the old axle nuts back on as added security. Around $10 for both, my parts guy said thats the cheapest fix you'll ever buy.
This is what works for me also. I've had brand new nuts loosen up after a short time. I can always tell when my nuts are loose . When I get on the highway and really punch it if my rear end sways back and fourth under power then the nuts are loose.
You chance snapping the axle at the shoulder torquing to 140ft lbs in a short amount of time, since the axle already stretched the first nut torquing, and your just stretching more a second time torquing it again to full spec on a used axle. Trust me, since GM can out with the new nut torque and loctite spec for new axles, and some techs have been using that torque spec for replacement bolts, there has been a lot of axle snapped from the over torque on the replacement nuts.
Hence all the nut torque will be from the shoulder of the axle against the rear of the wheel hub, to front of wheel hub surface, and since the axle did take its initial stretch the first nut torquing, you want to reduce the amount of torque the second time around on a used axle. And yes on the 272, since it going to hold the nut in place to keep if from coming loose again (no reason to second nut it).
Both my shafts on my 07 broke that I attribute to over tightening by the dealer. Even though they probably torqued per spec on TSB.
32k - Nuts replaced with TSB during 36-month warranty
57k- right shaft broke
80k- left shaft broke
See this early TSB that they likely referred to. Tighten to 160 lb ft!!
Tapping or Scraping Noise From Rear Wheel Area (Replace Wheel Drive Shaft Nut) #07-04-95-001 - (09/26/2007)
Models: 2004-2008 Chevrolet Corvette and 2004-2008 Cadillac XLR ------------------------------------------------------------------------------- Condition Some customers may comment on a tapping or a scraping noise coming from the rear wheel area.
Cause This condition may be due to the torque on the wheel drive shaft nut relaxing over time.
Correction Replace the left and the right wheel drive shaft nut following the procedure below.
Remove the center cap from the rim. Remove and discard the wheel drive shaft nut. Apply LOCTITE™ 272, or equivalent, to the threads of the axle shaft. Install the nut and tighten to the new specification. Tighten Tighten the nut to 215 N·m (160 lb ft).
Install the center cap to the rim. Important: The vehicle should not be driven for 24 hours following the repair in order to allow the thread lock to cure. Parts Information Part Number.....10257766 Description......Nut Qty................2 (one per side)
Both my shafts on my 07 broke that I attribute to over tightening by the dealer. Even though they probably torqued per spec on TSB.
32k - Nuts replaced with TSB during 36-month warranty
57k- right shaft broke
80k- left shaft broke
See this early TSB that they likely referred to. Tighten to 160 lb ft!!
Tapping or Scraping Noise From Rear Wheel Area (Replace Wheel Drive Shaft Nut) #07-04-95-001 - (09/26/2007)
Models: 2004-2008 Chevrolet Corvette and 2004-2008 Cadillac XLR ------------------------------------------------------------------------------- Condition Some customers may comment on a tapping or a scraping noise coming from the rear wheel area.
Cause This condition may be due to the torque on the wheel drive shaft nut relaxing over time.
Correction Replace the left and the right wheel drive shaft nut following the procedure below.
Remove the center cap from the rim. Remove and discard the wheel drive shaft nut. Apply LOCTITE™ 272, or equivalent, to the threads of the axle shaft. Install the nut and tighten to the new specification. Tighten Tighten the nut to 215 N·m (160 lb ft).
Install the center cap to the rim. Important: The vehicle should not be driven for 24 hours following the repair in order to allow the thread lock to cure. Parts Information Part Number.....10257766 Description......Nut Qty................2 (one per side)
No, only one nut per GM procedure. Using the old nut on top of the new one as a jam nut is a "belt and suspenders" option that was offered by someone on the forum. As I see it, it certainly won't hurt anything and could possibly help.
With 272 loctite in play on clean threads, the nut is not going to back off on the treads since its bonded in place (no need for a second jam nut), and if the bolt is loose at a later date 272 loctite in place, it because the axle has stretched inside the wheel hub channel (heat treated steel spider crack shattering), and the shaft is about to snap from the nut being over torqued in the first place.
11-19-2021, 01:09 AM
Wheel axle nut.
. When I get on the highway and really punch it if my rear end sways back and fourth under power then the nuts are loose.
