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This thread is a spin off of this thread I posted to learn if I should go with 68 style valve mounting or 69 style mounting, while one cat said 69 way is the best they never said why.....
So then I learn I have these odd ball J-56 brakes, I believe these calipers ended up on this 68 chassis when it was rebuilt with vette brakes transverse stuff, I have learned the pads are pretty darn expensive,
I was told cars that came with these brakes had an actual proportion valve...it that a must to run these?
So do I need these for my street cruiser? pros vs cons....
I am just trying to get the car going again...
I know that the 1966-early 1968 used the proportioning valve for the J-56 option... It was more to allow the owner to custom tailor the brake bias to their preference. Later cars that used J-56 used the standard brake distribution switch without a proportioning valve. Don't know what the 1973-1975 Z-07 cars used.
Bottom line is that if you can get them cheap, you don't need the proportioning valve.
The calipers should have pistons with thermoplastic insulators... The front calipers use brake pads with dual pins... The stock pad material isn't ell suited for street use, but it's doable... You can have custom pads made using stock backing plates... Neither stock nor custom pads are inexpensive.
Do they offer an advantage over the stock calipers? Not on the street.
I know that the 1966-early 1968 used the proportioning valve for the J-56 option... It was more to allow the owner to custom tailor the brake bias to their preference. Later cars that used J-56 used the standard brake distribution switch without a proportioning valve. Don't know what the 1973-1975 Z-07 cars used.
Bottom line is that if you can get them cheap, you don't need the proportioning valve.
The calipers should have pistons with thermoplastic insulators... The front calipers use brake pads with dual pins... The stock pad material isn't ell suited for street use, but it's doable... You can have custom pads made using stock backing plates... Neither stock nor custom pads are inexpensive.
Do they offer an advantage over the stock calipers? Not on the street.
Regards,
Stan Falenski
In the condition shown about what would they be worth?
In the condition shown about what would they be worth?
I guess what someone is willing to pay for them...and what the purchaser intention with them are. From the photos you posted...I can see small stamped numbers on the caliper where I can see it was ground on so the numbers would show. This is telling me that they have been rebuilt and it looks like possibly from Vette Brakes and Products....But I can not enlarge the photo to make absolutely certain.
With the casting numbers milled off? Not a whole lot. Some of the rebuilders used to do this and stamp their own codes into the castings... Not great for resale. Of course, you can have castings with the numbers still on them machined for dual pins (that's what the factory did), but that may be farther than you want to go.
I also believe they have a VB brand stamped on them, the stamp isn't very good, them being a VB product starting with the chassis being rebuilt with the transverse vb package wasn't that hard a chain of clues for even me to follow...
I asked value only as I hoped that they were worth a swap for good single pin calipers since I would rather not be locked into some odd ball hard to get & expensive pads caliper.
So they are junk...okay...I will clean them up and run them...
Seems to me that that is a pretty crappy way to do business, grinding off the original casting numbers. You can't tell me that there isn't another, discrete, spot on the calipers to stamp their numbers into. Someone restoring a period racer would want the casting numbers to be correct looking. I feel for you Bats. Lou.
Guys...it's all good,
Things like numbers grinding etc only means something to some purists not me a custom person...
I am not really out a penny on these they were on a restored chassis that I got for less than the full VB suspension kit on it,
I would much rather have plain old stock calipers but since these are not worth even what the stock ones are worth because they have been machined then I will make them work for me, because if machined they are sleeved and will work....
If someone desires I will take a better picture of the side so the machining can be better and further critqued...
there is a lot more to J-56 brakes than double pin calipers, the money is in the stiffening brackets (that I can see you don`t have) and as mentioned above the insulated pistons with 5/8" thick insulators (which we also can`t see), any Corvette C-2/C-3 caliper can be modified to make it a dual pin.
there is a lot more to J-56 brakes than double pin calipers, the money is in the stiffening brackets (that I can see you don`t have) and as mentioned above the insulated pistons with 5/8" thick insulators (which we also can`t see), any Corvette C-2/C-3 caliper can be modified to make it a dual pin.
But in my case these are just a modded fakes that will cause me grief when I need pad....
Why in the heck would anyone want to pay to get a stock caliper ruined into 2 pin?
i actually hated to admit that my fourth twinpin caliper set is VB
I bought these just because they had new original twin pin pads included. Therefore I just bought them only to get those pads (four more new pads for less than retail cost of the non originals) with no real interest by me in the calipers, so I never even really looked them over! So on the plus side I have a set of newly rebuilt or modified calipers from VB, that i will eventually sell or keep as emergency spare parts! I am now curious and might go dig them out.
Also some guy was selling aluminum repops of the reinforcement brackets in small and large spindle sizing! i bought one set just for the helluva it! but i haven't seen them offered here lately. I think the phony calipers are with those phony brackets in my garage! I might go snap a quick picture! I love the weird Corvette stuff!
the only viable option for keeping twin pin pads is if you have the budget to support either getting them re-padded, or buying non-original unit, unless you are rich! I actually take the original pads in and out and substitute my other units, if operating on the street, because the real ones suck on getting warmed up at street stop and go speeds!
Last edited by TCracingCA; Jun 7, 2015 at 10:27 PM.
From: I tend to be leery of any guy who doesn't own a chainsaw or a handgun.
Originally Posted by The13Bats
This thread is a spin off of this thread I posted to learn if I should go with 68 style valve mounting or 69 style mounting, while one cat said 69 way is the best they never said why.....
So then I learn I have these odd ball J-56 brakes, I believe these calipers ended up on this 68 chassis when it was rebuilt with vette brakes transverse stuff, I have learned the pads are pretty darn expensive,
I was told cars that came with these brakes had an actual proportion valve...it that a must to run these?
So do I need these for my street cruiser? pros vs cons....
I am just trying to get the car going again...
Somebody refresh my memory. Can the stock pad backing plates be drilled at the "J-56" locations and therefore be used in Bat's calipers?
I should be able to see, i misplaced my camera, but one of my coworkers said
Originally Posted by 69427
Somebody refresh my memory. Can the stock pad backing plates be drilled at the "J-56" locations and therefore be used in Bat's calipers?
it was in my desk drawer, so we can do a complete product overview (all but a road test, because they aren't going on a car!) I will grab some of the original pad sets and check, but i am pretty sure they do fit! Those pads were pinned in when i got them!
From: I tend to be leery of any guy who doesn't own a chainsaw or a handgun.
Originally Posted by TCracingCA
it was in my desk drawer, so we can do a complete product overview (all but a road test, because they aren't going on a car!) I will grab some of the original pad sets and check, but i am pretty sure they do fit! Those pads were pinned in when i got them!
I believe you might be correct. I looked at my old original frame/suspension in the corner of the barn yesterday, and it looks like the backing plates on the regular style brake pads reach up into the area where the additional holes are in the J-56 calipers.
J-56 pros cons
