When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Just do the LS1 upgrade. Easier to find parts and better than the 1LE brakes. You can also get a hub from Bigbrakeupgrade.com with the larger outer 1LE bearing. And as far as the rear all 90-92 rear disc are the same. They have the PBR calipers. The 1LE had the same rear brakes as the other disc brake cars only the front brakes are different. https://www.thirdgen.org/forums/brak...e-upgrade.html
Last edited by Fullmonte77; 12-02-2019 at 11:10 AM.
Shots fired! Shots fired! Send a wambulance! 1LE hype down!
You can't just go around dropping bombs like that.
Maybe OP needs to be a bit more specific about what he is trying to accomplish. Technically, there is no such thing as a 1LE hub. 1LEs have the hub machined into the rotor. You can cut that rotor down into a hub, but does that make it a 1LE hub? Hmm...
wow the bad info or I just didn't understand the post above
no difference I 1le spindle and standard spindle the 1le you don't have to modify
1le hub and standard hub there are differences in the outer bearing and in offset
when GM created the 1LE, the 'heavy duty" spindle was modified to accept a bracket for the PBR 2 piston caliper, and the rotor was a parts bin 12" from the front of caprice wagons and police specials, it was machined for the f body's 5x4.75" bolt pattern (the caprice wagon was 5x5). the hub was integral just like the 10 inchers used on the cast iron f body fronts
c4's use a sealed bolt on hub, front and rear
if you want to use a caprice rotor or a 1LE rotor to create a hub, the track width will not be any different than the 1LE, the wheel bolts to the outside of the newly created hub just as it would bolt to the outside of the rotor.
no difference I 1le spindle and standard spindle the 1le you don't have to modify
1le hub and standard hub there are differences in the outer bearing and in offset
I've got a set of 1LE spindles on the shelf and they sure look beefier in certain areas than my standard spindles.
Currently running a standard spindle with larger bearing.
I want to run a turned down 1LE rotor (now a hub) for the increase in track width. This I believe will let me use my new wheels without any spacer. Was just wondering if I could do it with any of the brembo brakes from the newer vettes or if the C4HD was the only swap I could do?
I've got a set of 1LE spindles on the shelf and they sure look beefier in certain areas than my standard spindles.
Currently running a standard spindle with larger bearing.
yea I've had the 1le setup been a min but didn't see big enough difference extra casting is around the caliper mounts IIRC
but I run standard spindle on 2 other builds no issues
the extra meat doesn't justify the hassle to look for them tho unless you just personally
want them
I want to run a turned down 1LE rotor (now a hub) for the increase in track width. This I believe will let me use my new wheels without any spacer. Was just wondering if I could do it with any of the brembo brakes from the newer vettes or if the C4HD was the only swap I could do?
you can run any brakes you want I'm not sure what your question is trying to ask if you use 1le hub you may have to space out caliper to center over rotor
the hub doesn't determine what brakes you can run the caliper bracket design does
The bottom line is that you can make any combination of caliper and rotor work with your spindle, you just have to experiment with different combinations of parts or trust someone who has already done it. If you want to make your own custom system, there are many 2 piece rotors with hats that have offsets to make your combination work. Your wheel tire combination has to play, and so it's a matter of math. Measure and figure.
It seems that many people who think of doing these things want it cheap. If you can source a combination of parts from previous or other applications, it is possible to create neat, unique setups. I've done many, and I know what parts work. Example, you have stock 16" wheels and you want to keep them. You want 1LE brakes, but parts are virtually impossible to source. If you have access to a wrecking yard that has C4 parts, many of those parts can be used. That would include your spindles, a mount pattern, 12 inch front rotors from a non big brake C4, calipers, brackets and pads from a big brake C4 and your modified 10.5" rotors (make hubs out of them). You don't need anything else. Your wheels and tires fit, and you have front brakes that are far more serviceable than the 1LE brakes were.
If you don't have wheels yet and plan on getting aftermarket, put whatever you want on, you can make it work.
this is on a standard spindle cut to accept the caliper mount
It seems that many people who think of doing these things want it cheap. If you can source a combination of parts from previous or other applications, it is possible to create neat, unique setups. I've done many, and I know what parts work. Example, you have stock 16" wheels and you want to keep them. You want 1LE brakes, but parts are virtually impossible to source. If you have access to a wrecking yard that has C4 parts, many of those parts can be used. That would include your spindles, a mount pattern, 12 inch front rotors from a non big brake C4, calipers, brackets and pads from a big brake C4 and your modified 10.5" rotors (make hubs out of them). You don't need anything else. Your wheels and tires fit, and you have front brakes that are far more serviceable than the 1LE brakes were.
LS1 brakes also fit under the 16" wheels. That stuff is easy to source and pretty cheep. i did my complete swap for under $350
trust I know and by the time you find them you lost interest and they just sit around lol
but for car restoration period correct upgrades its worth the hassle
I want to run a turned down 1LE rotor (now a hub) for the increase in track width. This I believe will let me use my new wheels without any spacer. Was just wondering if I could do it with any of the brembo brakes from the newer vettes or if the C4HD was the only swap I could do?
The C4HD set up will increase you track width around 1/2” on each side. The set up barely squeezes inside of 17” Ronal R15 wheels which have a taper to them. Factory 16” 91-92 wheels clear the C4HDs no problem.
12-01-2019, 07:50 AM
