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Username Post: Bolt Size for Shocks        (Topic#235527)
mwright1 
Senior Member
Posts: 650

Loc: Naperville, IL
Reg: 04-05-04
02-12-10 01:59 PM - Post#1861444    

Just picked up a set of Bilstein shocks and going to put them in this weekend, but need to know the size of the upper and lower bolts? Also not sure about the size of the smaller nut on the top of the front shocks. I'm assuming I'll need a long socket for that one. Its for a 2003 4x4 silverado

I'm soaking them with some PB Blaster now in hopes they come off easy.

Edited by mwright1 on 02-12-10 02:00 PM. Reason for edit: No reason given.

 
black95jimmy 
"7th Year" Silver Supporting Member
Posts: 8616
black95jimmy
Age: 63
Loc: Venice, FL
Reg: 01-05-02
02-12-10 02:50 PM - Post#1861480    
    In response to mwright1

You will have to cut the top ones.
82 Monte Carlo SC, 355 w/Vortec heads, roller rockers, 670 Street Avenger, Pypes true duals.
2000 Sub.5.3L 40 Gallons of gas @ $3.68/gal. bla bla bla.


 
mwright1 
Senior Member
Posts: 650

Loc: Naperville, IL
Reg: 04-05-04
02-12-10 03:37 PM - Post#1861510    
    In response to black95jimmy

Thanks, but what exactly do you mean by cut the top ones? Cut them off with a hacksaw?
If it ain't broke open it up and make it better 03 Silverado 5.3 Z71


 
black95jimmy 
"7th Year" Silver Supporting Member
Posts: 8616
black95jimmy
Age: 63
Loc: Venice, FL
Reg: 01-05-02
02-12-10 03:47 PM - Post#1861522    
    In response to mwright1

Abrasive wheel is better, or a Nut Cracker, those top ones always rust on.

http://www.google.com/products/catalog?sour ce=ig&a...
82 Monte Carlo SC, 355 w/Vortec heads, roller rockers, 670 Street Avenger, Pypes true duals.
2000 Sub.5.3L 40 Gallons of gas @ $3.68/gal. bla bla bla.


 
mwright1 
Senior Member
Posts: 650

Loc: Naperville, IL
Reg: 04-05-04
02-12-10 03:57 PM - Post#1861529    
    In response to black95jimmy

Good info.. Thanks.. do you know the bolt size for the rears and lower front?
If it ain't broke open it up and make it better 03 Silverado 5.3 Z71


 
black95jimmy 
"7th Year" Silver Supporting Member
Posts: 8616
black95jimmy
Age: 63
Loc: Venice, FL
Reg: 01-05-02
02-12-10 05:04 PM - Post#1861574    
    In response to mwright1

No, can't help there.
82 Monte Carlo SC, 355 w/Vortec heads, roller rockers, 670 Street Avenger, Pypes true duals.
2000 Sub.5.3L 40 Gallons of gas @ $3.68/gal. bla bla bla.


 
andykirk 
Member
Posts: 57

Loc: NC
Reg: 12-15-05
02-12-10 07:01 PM - Post#1861681    
    In response to mwright1

MWRIGHT1 that's scarey !! I just got my Bilstein shocks today for my 2003 4x4 silverado too and was planing on putting them on until this snow started here in NC !! I got mine from a place in TN that had a website and you can call as well. It's called Top Gun Customz. I got the 5100 series which are the silver with black boot for $268 plus $19 shipping. I turned up my torsion bars on the front so I needed the ones for the 2" lift. What style did you get? I am waiting to see how my ride improves. Current ones are shot. Andy

 
mwright1 
Senior Member
Posts: 650

Loc: Naperville, IL
Reg: 04-05-04
02-12-10 09:15 PM - Post#1861756    
    In response to andykirk

Wow, that is freaky...I got the stock replacements. Got them from eshocks, on-line for $255 with free shipping. Honestly they are ugly looking, yellow with blue boot, but didn't really have a choice. Hopeing to get them on this weekend. My stock ones are shot also, only have 55K miles. Hope to notice some improvement. Still trying to figure out the bolt size to get them off, look like 22 or 23 MM but not sure.
If it ain't broke open it up and make it better 03 Silverado 5.3 Z71


 
BBC-454 
Senior Member
Posts: 1400
BBC-454
Loc: Edmonton, Alberta
Reg: 05-11-03
02-12-10 10:41 PM - Post#1861800    
    In response to mwright1

I live in an area where they salt the roads 6months of the year and have only had a few out of many that I had to cut off due to corrosion.

The upper shock nut is 15mm, I use a gear wrench but a normal one will work, you also need an 8mm to hold the shaft from spinning, or a large pair of pliers. lower bolt is 21mm or 18mm, same with the nut.

Rears are 21mm top and bottom.

Front shock lower bolt is 18mm on 1500's, 21mm on 2500/3500's if I remember correct.
Josh R.L.
Licensed Automotive Mechanic
1966 Buick Special 2 door
1961 Chevrolet Apache 10 panel van
1995 GMC K2500
2011 VW Jetta TDI


Edited by BBC-454 on 02-12-10 10:42 PM. Reason for edit: No reason given.

 
andykirk 
Member
Posts: 57

Loc: NC
Reg: 12-15-05
02-14-10 01:14 PM - Post#1862677    
    In response to mwright1

Hey Man, I put my bilsteins on today. If you have not done yours yet call me. I got some tips for you. Andy 336-284-6418

 
black95jimmy 
"7th Year" Silver Supporting Member
Posts: 8616
black95jimmy
Age: 63
Loc: Venice, FL
Reg: 01-05-02
02-14-10 01:42 PM - Post#1862689    
    In response to andykirk

  • andykirk Said:
Hey Man, I put my bilsteins on today. If you have not done yours yet call me. I got some tips for you. Andy 336-284-6418


We have a PRIVATE TOPIC area, DON'T put your phone number here.
82 Monte Carlo SC, 355 w/Vortec heads, roller rockers, 670 Street Avenger, Pypes true duals.
2000 Sub.5.3L 40 Gallons of gas @ $3.68/gal. bla bla bla.


 
mwright1 
Senior Member
Posts: 650

Loc: Naperville, IL
Reg: 04-05-04
02-14-10 01:43 PM - Post#1862690    
    In response to andykirk

Just put mine on this morning too. Went pretty easy.. Soaked the bolts overnight they all came off fairly easy... New ones went right on. Only noticed a little difference so far.

Rears and bottom front bolts were 21 mm. Front top is 15mm for the stock shocks, and 17 mm for bilstein replacements.
If it ain't broke open it up and make it better 03 Silverado 5.3 Z71


 
andykirk 
Member
Posts: 57

Loc: NC
Reg: 12-15-05
02-14-10 02:56 PM - Post#1862747    
    In response to black95jimmy

Yep, I was looking for a button to send a private msg. Where is it ? Thanks, Andy

 
mwright1 
Senior Member
Posts: 650

Loc: Naperville, IL
Reg: 04-05-04
02-16-10 11:42 AM - Post#1863907    
    In response to black95jimmy

  • Quote:
I got some tips for you



Got mine on with out any major problems, but just curious what were your tips? My only tip is to watch your head on the bottom edge of the fender corner just behind the rear wheel. Ask me how I know.
If it ain't broke open it up and make it better 03 Silverado 5.3 Z71


 
andykirk 
Member
Posts: 57

Loc: NC
Reg: 12-15-05
02-17-10 06:50 PM - Post#1864811    
    In response to mwright1

I was able to put an open end wrench on the welded nut that is on top of the front shock just below the frame mount. Then I put a deepwell impact socket on from the top and got them right out. Andy

 
aero48 
Member
Posts: 42

Loc: Il
Reg: 01-14-05
02-27-10 03:42 PM - Post#1870611    
    In response to mwright1

I ordered KYB shocks for my '03 Z-71 4 days ago. Just rotated the tires and decided I needed shocks.After cleaning up the hubs and rims I sprayed all of the shock bolts with GIBBS penetrant. I will spray them again before
attempting the change after reading this topic.
Thanks!
2003 Z71 5.3 Standard cab


 
mwright1 
Senior Member
Posts: 650

Loc: Naperville, IL
Reg: 04-05-04
02-27-10 08:18 PM - Post#1870755    
    In response to aero48

I sprayed all mine the day before and didn't have any problems getting them off. I used a pair of vice grips to hold the front ones with a deep socket to get the nut off that worked pretty well.
If it ain't broke open it up and make it better 03 Silverado 5.3 Z71


 
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