Help required: Wheel Cyl. boot part# interchange

[Lynn Eades]

Hi guys, I am looking for a modern interchange part number for the old Wagner Lockheed part number FC 5976C which is the boot from a CMP (eg. F30) 1 1/2" wheel cylinder.
A Raybestos, Repco, or PBR number is fine.
I'd like to be able to order locally, rather than importing, If I can.
Thanks in advance

[Phil Waterman]

Hi

The wheel cylinder you are looking for were used on Chevy CMPs as well, so if you have can find cylinders that can be sleeved it may be a far better choice than replacing the existing cylinders with NOS or new manufacture.

I went over to sleeving my old cylinders after having to replace new ones which had pitted after 5 years. That was 30 years ago and the cylinders have never had to be redone since, just did a rubber cup replacement on recently on my C60S which as the same Ford cylinders you are talking about, turns doing a brake rebuild from replacing wheel cylinders or having to hone out the pits to replacing the rubber parts. Not bad for 25 years.

I suspect that you are going to find sleeving is more cost effective than ordering cylinders out of the US or Canada.

Cheers Phil

[Lynn Eades]

Hi Phil, Yes that is the plan to sleeve the old ones if that is what's needed.
Funnily enough, this vehicle was used as a trailer after WWII. the pipes were broken off, but were clogged with dirt. When I pulled the brakes apart, the pistons pushed out. I was amazed. I will run a hone through the cylinders to find out how bad they are, and if need be, I will have them sleeved.

I do still need the part numbers. It's no good having sleeved cylinders with no boots or cups.
I thought there were G.M. part numbers for these Ford bits, but I only seem to be able to find the Ford numbers.
Cylinder assy 91T-2192
Boot 1 1/2" 91T-2206
Cup 1 1/2" 91T-2201

What are the modern alternative numbers please?

[Hanno Spoelstra]

Lynn,

Did you check this thread?
http://www.mapleleafup.net/forums/showthread.php?t=1814

H.

[rob love]

1-1/2 bore=Raybestos WK104 (fits WC4511)
1-3/8 bore-Raybestos WK103 (fits WC4571)

For NAPA rebuild kits, just drop the WK. NAPA Canada retails at around $27 per kit. I can get the complete wheel cylinders out of the US for around $10 more. But there is merit to what Phil says about sleeving then only ever having to replace the rubber parts. The low Chinese supplied prices will not last forever.

[Jacques Reed]

Hi Lynn,

Here in Australia, ABS Part No. A725 are the rear 1-1/2" cups. I bought them off the shelf from local brake shop two years ago.

They were also listed as IBS Brake parts P725E on the package.

Cheers,

Jacques

[Mike Kelly]

Those aftermarket imperial cups ( typically made in places like Spain) can cause problems. They are not the same width as the originals and unless your cylinder is in pristine condition, they can weep .

Also, check your cylinder with a bore gauge, for it may be oversize . PBR used to supply oversize cups but that was decades ago .

[T Creighton]

Hi Lynn,
I know Brake Service Centre in Tauranga is no longer in business but my November 04 invoice shows
P368 Boot 4 off
P4301 Boot 4 off
They will be front and rear wheel cyls but can't remember what manufacturer.
Regards,
Terry

[John Mackie]

Hi Lynn
Ford truck 1939--48 and all blitzes use wheel cylander boots no. (p)5975 front and(P( 5976 rear PBR numbers. readily available in Aus.
PBR numbers and Lockheed numbers are often the same . PBR may use latter P , Lockheed use FC.

[Mike Kelly]

Originally Posted by John 4172

Hi Lynn
Ford truck 1939--48 and all blitzes use wheel cylander boots no. (p)5975 front and(P( 5976 rear PBR numbers. readily available in Aus.
PBR numbers and Lockheed numbers are often the same . PBR may use latter P , Lockheed use FC.

Hi John

PBR don't manufacture imperial sized cups any more . They sold all of the dies/moulds to a guy who apparently destroyed them or sold them off-shore. You may get lucky and find a store with some old imperial PBR stock, if you do, buy them all . My neighbour has had problems with the IBS imperial aftermarket cups made in Spain , leaking -weeping in a AT4 dodge truck , they are narrower cups than the PBR ones . We did think of using two of them in series eg 4 to each cylinder . Mike

[Jacques Reed]

Hi Mike,

Thanks for that information regarding thinner Spanish made IBS cups. It made me go check my spares box.

Luckily the rear ones were the correct thickness NOS ABS items but the front were the Spanish IBS as pictured.

Even without measuring, the IBS cup on the right is noticeably thinner than an earlier original sample on the left.
Measured as best as possible on a rubber part: 0.350" vs 0.315" = 0.035"

Not a lot, but enough to cause problems with sealing obviously.

Cheers,

[John Mackie]

Mike . It is a pity what's happered to the patrs of the Repco company.
I get all my brake hoses cylanders and cups from a firm at Orange N. S. W. They seem to have most items in stock

[Hanno Spoelstra]

Check the thread F15A wheel cylinder boots for a reference to an ATE part number.

HTH,
Hanno