Blue67LS2

iTrader: (2)

Yes, works with the Dorman listed previously.

adrian-1

iTrader: (1)

Looks like I won't need a smaller pulley. I forgot the s&p motor mounts put the engine further up, so the belt isn't lined up with the bolt.
The A arm is fairly close but I will need to get an alignment once I'm all done. Hopefully they remove 1 or 2 of the alignment spacers.

Blue67LS2

iTrader: (2)

The fact that you have tubular A-arms helps as well. It looks like you should be just fine based upon those pics.

samckitt

iTrader: (5)

Today I bought the Doorman 300-301 pulley and tried it. Didn't work for me with the Vette accessories. It fit on the pump shaft, but wouldn't line up with the other pulleys.

bmf5150

Try that Cts pulley???also what effect is the smaller pulley on the pump over time?

samckitt

iTrader: (5)

Ordered the CTS pulley yesterday, should be at the dealership in a few days. I wondered about the smaller pulley effect on the pump too. Obviously it will spin it faster, I was told the pump is internally regulated so pressure & flow is the same.

LSxChevelle

iTrader: (4)

How much smaller is the CTS pulley? I'm thinking I need like 3/4" smaller at least to clear my pressure line at the steering box.

samckitt

iTrader: (5)

Stock Vette pulley is 6.75 edge to edge.

A friend of mine told me that the truck pulley is 5.5 OD, but I haven't been able to find the ID of the center hole. The Trailblazer one I have, the ID is .75, won't work on the Vette pump.

LSxChevelle

iTrader: (4)

Thanks...I'm going to install the pressure line into steering box so it's fully seated and then check how much smaller is needed with motor/trans at proper angle.

bmf5150

Please let us know

leon phelps

Samckitt,

I wish I was listening to you earlier. You are correct that the Dorman 300-301 pulley does NOT line up with the c5 corvette accessories. I had a squeak issue that I have been chasing for six months that all leads back to this pulley.

here is what the correct one should look like...
http://forums.corvetteforum.com/c5-g...rive-pics.html

and the dorman one
https://picasaweb.google.com/humpydo...eat=directlink

ryanleiker

iTrader: (2)

Old thread, I know, but I was wondering what the diameter of the stock LS1 F-body p/s pulley was. I don't have one physically in front of me to compare to my current setup and am wondering if it would be worth the ~$40 to get one.

1976CamaroGuy

iTrader: (8)

I'm going to add to this as I am in need of a 5" pulley and really don't want to buy a billet dirty dingo unless that's my last resort.

I have the corvette pump and holley bracket, my pump shaft is the .66 version. I found a thread where gary68 used a dorman 300-201 but his bracket looked like a truck bracket and dorman's website shows the shaft dia hole to be around .75 or something, def not .66

Any suggestions??

ryanleiker

iTrader: (2)

I'm pretty sure the early 90's 2.8 S-10 pulleys are the small shaft type 2 pulleys... but you'll have to find an oem one at a salvage yard as dorman doesn't make one yet.

garys 68

iTrader: (1)

Check out the Dorman 300-126 if 5 3/4" will work.
From Rock Auto
DORMAN 300126 {#25522518} Metal; O.D.; 5-3/4"; Width: 1-1/4"; Belt Type: Serpentine; ID: .661"

1976CamaroGuy

iTrader: (8)

Thanks for the heads up, I'm going to give it a shot...that should be enough

1976CamaroGuy

iTrader: (8)

After doing some measuring , even that much less on the pulley, it's going to hit the hi-pressure pump fitting on the gearbox

I broke down and ordered the dirty dingo 5" pulley, Thats going to give me plenty of room I need. Hated to spend that kind of cash on a pulley and they charge $14.50 shipping for priority mail in a small flat rate box which is only around $5 so that was hard to swallow lol.

But I needed it and had no choice

barnsydog

Hi Folks Im in the UK suffering with this LS Pulley problem, I have a 48 Chevy Stepside Running a Corvette LS1,My PS Pulley began spinning on the shaft. I ordered a Corvette Pulley and was told it didn't fir possibly because Camaro/Firebird LS1 have different shaft sizes, The Corvette Pulley purchased was too small. Ive since learnt that not all Corvettes have the same shaft size some .66 some .72, I take it mine is a .72. I had the fibre Pulley boss machined to fit but now suffer belt squeal and Im told that the pitches are different on some pulleys.....Id like to buy a Metal Pulley and Im told again that aftermarket pulleys are $100+ and yet an LS2 is $20 and upgraded to metal, Does anyone know the shaft size on the LS2? or are they different too......Im gonna hopefully stop the squeal today using a Gator Belt......

leon phelps

try asking on facebook. there is a corvette salvage place called dinos corvette salvage. pretty knowledgeable folks.

barnsydog

where is Dino's corvettes salvage in the UK or USA? Handy to know. I think I have the squeal problem solved the belt fitted by a Corvette Mechanic here in the uk was not only old but it was the wrong size and the tentioner was actually bottoming out. I purchased a new belt locally and fitted it myself now the problem is solved. However if the LS2 Meatl pulley fits Id like to replace the fibre pulley just fitted as I do not trust them.......