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.
I more or less followed this guy in using the Astrovan unit. I did the bracket different, but used the adapter fittings from eBay and had custom liines made.
I more or less followed this guy in using the Astrovan unit. I did the bracket different, but used the adapter fittings from eBay and had custom liines made.
No I still ran the Thompson Pump. I used my original pump at first until the front seal went out (actually it had been leaking for years, but finally got too much to handle) so I snagged another junkyard unit that had what seemed slightly less pressure.
The j/y unit would whine a little in parking lot situations where you're on the brakes some and cranking the wheel. But it worked just fine.
I then resealed my original pump and the day before I went to re-install it the hydroboost went sour. It was a junkyard unit too, so who knows. I have since picked up another unit, but haven't installed it yet.
But, I have a 2wd with 31" BFG TA/KO and also some 28" BFG Radial T/A tires so braking and power steering weren't taxed like it would with big 4X4 tires or off-roading. So I think the Thompson seems to work well as is, but a Saginaw is the way to go, especially if the Conversion Saginaw can be found.
Can someone explain how to do this? Did he simply cut the hard lines, flare them, and put on compression fittings?
If there's a decent hydraulic shop in your area they can make you new lines with whatever ends and fittings you need, or cut old fittings off and install new conversion fittings. Cheap peace of mind. If I'd have had to modify high pressure lines, I would rather have a pro do the work on them.
Can someone explain how to do this? Did he simply cut the hard lines, flare them, and put on compression fittings?
If there's a decent hydraulic shop in your area they can make you new lines with whatever ends and fittings you need, or cut old fittings off and install new conversion fittings. Cheap peace of mind. If I'd have had to modify high pressure lines, I would rather have a pro do the work on them.
I agree. I would much rather pay the price for pro lines than risk failure on a trip. It's all about peace of mind. I was actually just wondering how he did it. I guess he just flared them like brake lines, and used appropriate fittings. I'm waiting for S.duty lines to arrive. They 'should' be bolt in. I'm also debating whether to go ahead and spend an extra $100 for a rebuilt unit, instead of just popping in the j.yard one, not knowing how many miles are left on it. I'm leaning toward the $100 insurance policy.
I also noticed that some guys doing the h.b. swap, who are running discs all around, are using the mastr from a 1980 corvette with 4 discs. It has equal reservoirs, and is only $20 rebuilt. I like that $20 part.
What side do the lines.fittings thread into on the corvette master?
It was brought up earlier in the thread that my superduty booster has the fittings on the opposite side as stock (inside vs. outside). For my this is fine. Here's why it's actually better for me on the crew cab...
The picture makes it look like there is more room than there actually is.
For a disc/drum on the astro HB, use a 79 camaro MC. There are 3 ways to do the pump. You can T into the return line for the steering box with the return from the HB, you can use a dual return saginaw, or you can use the dual return ford pump from an 87 or so lincoln mark vii
For a disc/drum on the astro HB, use a 79 camaro MC. There are 3 ways to do the pump. You can T into the return line for the steering box with the return from the HB, you can use a dual return saginaw, or you can use the dual return ford pump from an 87 or so lincoln mark vii
Thanks. But I have 4X disc. I believe I'll go with the 2000 F450 S.duty master. It was designed for a heavy truck with 4x disc.
unless you want it cobbled together, use a GM master cylinder on the GM HB unit. Use a 77 or so corvette MC.
The hydroboost unit is made by Bendix, the same co. that sells master cylinders to several manufacturers. Bendix makes boosters for Chevy and Ford. If a part works, I use it. A part does not have a soul, and does not know/care where it came from. Every vehicle is jumble of parts: saginaw p/s pump, bendix brakes, German ZF trans., dana rear ends, etc., etc. If a part works and improves my truck, I am happy to use it in any combination that suits me.
What side do the lines.fittings thread into on the corvette master?
It was brought up earlier in the thread that my superduty booster has the fittings on the opposite side as stock (inside vs. outside). For my this is fine. Here's why it's actually better for me on the crew cab...
The picture makes it look like there is more room than there actually is.