MikeH

iTrader: (10)

Ive been told Guldstrand stopped for now. Manufactureing the brackets for adapting the PBR calipers. To the stock F-body non 1LE spindle.

Does anyone know if there is someone else manufactureing them?

Thanks,
MikeH

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Black 90 IROC, L98, A4, 323 gear. SuperRamed 406 in the works!

Kenn

I think you can order them from GM since the ILE spindles are factory modified stock spindles - thats probably why Guldstrand had to quit making them

Next Generation Parts has the entire conversion kit- pretty spendy

GregWestphal

iTrader: (1)

Having researched this conversion last year, and then buying the whole stock 1LE brake set-up out of an '89, I can tell you that the 1LE spindles are not modified regular spindles, they are separate castings. You can get the spindles, caliper brackets, and hoses from Dal much cheaper than NextGen (or any other GM part for that matter). AutoZone has calipers and rotors, although you'll need to pay the core charge if you don't have anything to trade in. Any GM dealer can look up the various bolts and nuts needed to complete the conversion. BTW, the Guldstrand brackets require you to cut the "ears" off of the stock spindles and tap out a couple bolts. I do know of a couple guys that have gone that right, but I happened to find the whole set-up for $500.

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Greg Westphal
'87 IROC 305TPI/A4

Hunter Motorsports

1-LE spindles ARE modified regular spindles. Hell you can see where they took a band-saw or a milling machine and cut the normal caliper mounting brackets off. The only difference you may have found would be the thickness of the bosses in the casting around the bolt holes which hold the backing plate in non-1LE cars and the caliper adapter bracket in 1-LE cars. Older cars (88 and older) have spindles which are pretty thin in this area, but newer cars (89 and up) have thick castings around these holes. In 1989 G.M. revised the casting so the area surrounding the holes would be strong enough to support the loads of the braking forces. The new and old spindles have different casting numbers and may appear slightly different cosmeticly, but are otherwise dimensionaly the same. 1-LE spindles are not a unique casting.

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Karl Hunter
Hunter Motorsports
Vancouver, B.C. CANADA

Kenn

Hunter
Are the 1LE Conversion Brackets by Guldstrand the same as the Anchor Plates by GM- since a 1LE spindle can be made from a stock one and both those parts are used to hold the caliper bracket on- stands to reason??

Hunter Motorsports

I have never seen the Gulstrand one, but they would have to be dimensionally the same, so yes.

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Karl Hunter
Hunter Motorsports
Vancouver, B.C. CANADA

ws6transam

Arrgh! More research that I am now obligated to pursue....

I have eight out of fifty commitments for a GP from Guldstrand so far... Perhaps I'd better get the GM P/N and give Dal a call, eh? I think I'll try to dig up some 1989-1992 front spindles too from Camaro Heaven, before you all get the same idea.



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Daniel Burk
http://www.isthq.com/~dan/fcar.html
'84 Trans Am WS6/L69
KB SFC, Moser axles, Torsen Diff. PST suspension, Braided stainless brake lines, Koni struts, 11-inch rear disks,Spohn Adj. torque arm,
Ported 305 heads w/1.94"intake valves, Comp Cams XE262H, Griffen alum. radiator,
Turbine Technologies 2500 stall converter, underdrive pulleys, Crane Hi-6 & more.
1.05g skidpad verified.
New best E/T! 14.039 at 100.82 MPH in 41 degree air at Stanton, Michigan.

TomP

So it's either:

1. Use the Guldstrand unit to adapt the 1LE calipers to the normal spindles

OR

2. Remove the normal spindles, put on 1LE units, and then put on 1LE calipers

Or were the LCA's different too?


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-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!

MikeH

iTrader: (10)

Karl thank you...I did not know that the 1LE spindle was just a modified stock one. So from what you are saying I can just buy the bracket from GM? If they still sale them, Would you happen to know the part number for the bracket. There is an anchor plate and the part in question that holds the caliper to the spindle?

On dans page there is a picture of the Guldstrand part.
http://www.isthq.com/%7Edan/1LEbrake.html

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Black 90 IROC, L98, A4, 323 gear. SuperRamed 406 in the works!

[This message has been edited by MikeH (edited November 20, 2000).]

GregWestphal

iTrader: (1)

I'm gonna have to disagree with Karl on this one since I -do- have 1LE brakes on my IROC that I had installed earlier this year. The 1LE brakes do not need the Guldstrand (or anybody else's) adapter brackets since the caliper anchor plates bolt directly to the spindles. If you look at the pictures in the webpage MikeH posted, you'll see what I'm talking about.

To answer Kenn's question, no, the 1LE conversion brackets by Guldstrand are not the same as the GM anchor plates. For those converting to 1LE brakes and using the conversion brackets, you'll still need to buy the GM caliper anchor plates. Someday soon, I'll take some pictures of my 1LE brakes and post them on my webpage. :

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Greg Westphal
'87 IROC 305TPI/A4

ws6transam

So Greg, what's the difference between a Guldstrand adapter bracket, and GM caliper anchor plate? I always thought that the calipers bolted directly to the Guldstrand piece. Are you saying that the 1LE spindles have mounting flanges cast directly into the spindle, and some kind of GM anchor plate, which doesn't normally come with the calipers, mounts to this? Furthermore, the Guldstrand part is simply a "bolt-on" set of mounting flanges for stock spindles???

Sorry Greg, but you have left me confused. please clarify.

GregWestphal

iTrader: (1)

The Guldstrand adapter brackets allows one to bolt the GM caliper anchor plate to the regular (but modified) stock spindles. These brackets might not be the same as the 1LE brackets, although they look quite similar. The caliper anchor plates don't bolt straight to the spindles as I had previously said in this message. You'll probably need the 1LE brackets from GM for the 1LE spindles (about $120 for the pair), although the Guldstrand brackets might work. Nope, the 1LE spindles don't have mounting flanges cast directly into the spindle. The GM anchor plates, which have separate part numbers from the calipers, mount to the 1LE brackets or the Guldstrand adapter brackets. The calipers don't bolt to anything; they're held in place by a sliding pin that's held in check by an E-clip, although the top sort-of slides into the caliper anchor plate. Yes, the Guldstrand part is simply a "bolt-on" set of mounting flanges for stock spindles so that the GM anchor plates can be bolted to them. I did take another look at the spindle and it definitely is not a cut-up regular spindle. If it is, the way GM cut them looks awefully like a casting to me. HTH...

Ummmm, after pulling off a wheel, the caliper, and the caliper bracket, I have a few corrections to make above.

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Greg Westphal
'87 IROC 305TPI/A4

[This message has been edited by GregWestphal (edited November 21, 2000).]

MikeH

iTrader: (10)

Thanks Greg...So..We know now that you have to have the GM anchor plate to mount the caliper. So the problem is mounting the anchor plate to the stock spindle.

Do we need the Guldstrand part to do this?
Or will the GM part work on a stock modified spindle?

A picture of the two spindles would help. Could the 1LE spindle basictly be a cast version of the stock spindle with the ears cut off? Or as Karl said, they are the same with the ears cut off?

The GM spindles are the high dollar items That we are trying to aviod purchasing.

Thanks

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Black 90 IROC, L98, A4, 323 gear. SuperRamed 406 in the works!

[This message has been edited by MikeH (edited November 22, 2000).]

GregWestphal

iTrader: (1)

I'm not sure if the GM 1LE bracket will work with modified regular spindles, but (obviously) the Guldstrand adapter bracket will work and costs less.

From looking at my 1LE spindles, I could see nothing on it that would indicate that they are regular spindles with the ears cut off. Every part of it looks like a casting with no machining marks whatsoever.

As far as the total cost of doing the 1LE conversion, I had priced it up last year going the Guldstrand route, cutting the ears off of my stock (regular) spindles, buying the rotors and calipers from AutoZone, and buying the caliper anchor plates and remaining hardware from Dal. I think it came out to be about $700-800 including braided S/S hoses from Earls. You can get the rubber 1LE hoses from GM still, as I went that route while I was waiting for the hoses from Earls.

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Greg Westphal
'87 IROC 305TPI/A4

MikeH

iTrader: (10)

Thanks for your input Greg, I would buy the brackets from GM if they would work. Any one know for sure? I would hate to throw away 120.00 just to find out. Karl...Do you know?



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Black 90 IROC, L98, A4, 323 gear. SuperRamed 406 in the works!

Jason M 91Z

Ok,

GM has two caliper related brackets listed. One is a "caliper bracket" which holds the pads and in turn holds the pad guided PBR caliper. The other is an "anchor plate" which doesn't have left and right numbers, although two are required. I'm assuming Karl is onto something here. It would appear that the stock spindle is modified, and accepts this "anchor plate" which performs the same task as the Guldstrand piece. Then the "caliper bracket" bolts to the anchor plate. If anyone can confirm some truth to this, please speak up.


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-Jason M. 1991 Camaro Z28
"Its Blue."

MikeH

iTrader: (10)

Jason...Do you have prices/part numbers for them?

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Black 90 IROC, L98, A4, 323 gear. SuperRamed 406 in the works!

Jason M 91Z

Thats the bad part Mike, I have the Next Generation catalog and it lists all 1LE pieces down to brake hose washers. They don't include GM part numbers however. They sell these "anchor plates" for $99.95 each and it says 2 are required. I bet if we could find GM part numbers we can get them for 55-60 each, and they may just be the parts we need. I'm not positive though, so don't quote me until I can find a reliable source. Anyone have a 1LE brake diagram?

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-Jason M. 1991 Camaro Z28
"Its Blue."

Jason M 91Z

Ok guys, new news,

Brian (TopForm) just posted a bunch of GM part numbers for 1LE brake parts. The bracket (part in question) is part number 18016034 (2 reqd.) GMPartsDirect.com has them for $55.54 each. If this is what we need, sounds like a deal!

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-Jason M. 1991 Camaro Z28
"Its Blue."

MikeH

iTrader: (10)

Yes...That is the one.. about the same price as the guldstrand part too! Karl seems to think they will work on a modified stock spindle like the guldstrand bracket. I found a picture in a book last night with the basic setup for the 1LE parts. The guldstrand and the GM brackets are very similar. Same Design and basic bolt hole location.

The other parts needed to mount the calipers are on dans page. LH 10132829 caliper anchor plate RH 10132830 caliper anchor plate. Price is 56.86 each.

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Black 90 IROC, L98, A4, 323 gear. SuperRamed 406 in the works!

[This message has been edited by MikeH (edited November 23, 2000).]

Jason M 91Z

OK Mike,

Do you know where the GM bracket bolts to? I'm assuming the boss for the brake dust sheild as Karl said. I'll be placing a big order with GMPartsDirect.com pretty soon, so if these brackets are the ones we need, it looks like I might be in business! Thanks to all that helped, and a lot of worthy information has been shared in this thread.

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-Jason M. 1991 Camaro Z28
"Its Blue."

Hunter Motorsports

The "anchor plate" is the part everyone is looking for. The G.M. and the Gulstrand anchor plates have to be dimensionally the same. I have modified "regular" spindles for 1-LE applications before, and 2 of the bolt holes for the dust shield have to be re-drilled and tapped to accept larger bolts, then the anchor plate bolts right on. I have also purchased a brand new (very expensive) 1-LE spindle from G.M. and with no dirt or rust on it it was very easy to see where the normal caliper mounting ears were cut off. I also own an all original 89 1-LE Camaro, and am very familliar with the brake setup and I am 100% positive that the 1-LE spindle from G.M. is NOT a unique casting. Perhaps there is an aftermarket company casting 1-LE spindles. I have never personally seen one. All the 1-LE spindles I have seen,(and I have seen many) are evidently modified versions of a regular spindle. I am positive that the G.M. anchor plate will bolt to a modified regular spindle and accept all 1-LE brake parts. I have done it. The anchor plate is the same for left and right. The picture of the Gulstrand adapter bracket on Dan's page looks exactly like the G.M. anchor plate.

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Karl Hunter
Hunter Motorsports
Vancouver, B.C. CANADA

Jason M 91Z

Ok guys,

I just placed my order with GMPartsDirect.com. I bought the caliper brackets (10132829 and 10132830) and the caliper anchor plates (18016034). I also bought the miscellaneous hardware and an aluminum driveshaft (10085375). When I get the parts in and confirm that they're in fact what I need, I'll take some pics and let you guys know. Thanks for all the help on this thread.

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-Jason M. 1991 Camaro Z28
"Its Blue."

MikeH

iTrader: (10)

Good luck Jason! Please let us know it works out for you. Thank you Karl... for taking the time to respond to this, and everyone else that did.



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Black 90 IROC, L98, A4, 323 gear. SuperRamed 406 in the works!

Hunter Motorsports

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