The "Tan Brick" aka my 1997 Express Cobra conversion

[jim_in_dorris]

Fast, I have a 90 Astro van with hydroboost brakes. Would that unit be adequate for installing in a 1/2 ton 4x4, or should I look for a 3/4 ton or 1 ton unit out of another pickup.

[JeepsAndGuns]

Fast, I have a 90 Astro van with hydroboost brakes. Would that unit be adequate for installing in a 1/2 ton 4x4, or should I look for a 3/4 ton or 1 ton unit out of another pickup.

One of those would be perfect for a 1/2 ton. The astro van hydroboosts are a very popular swap for the fullsize jeeps (wagoneer, cherokee, J-10, etc..) Everyone who installs one loves it.

[Fast355]

Fast, I have a 90 Astro van with hydroboost brakes. Would that unit be adequate for installing in a 1/2 ton 4x4, or should I look for a 3/4 ton or 1 ton unit out of another pickup.

Those Astro/Safari vans are basically 1/2 ton truck or 2nd generation F-car like brake setups. The Astros hydroboost sits at a downward angle on the firewall. Hydroboost is commen to find in the later G-vans as well. From about 1993 to 1995 it seems nearly all the G20s and G30s used hydroboost.

[JeepsAndGuns]

The Astros hydroboost sits at a downward angle on the firewall.

Not all. Most all I see at the junkyard are straight, only a few have been angled down. Not sure if its a year range thing or what. The ones with the straight mounting plate are usually really easy to adapt to other vehicles.

[Fast355]

Not all. Most all I see at the junkyard are straight, only a few have been angled down. Not sure if its a year range thing or what. The ones with the straight mounting plate are usually really easy to adapt to other vehicles.

Weird...I only seem to see the angled ones here. I had both a 97 and a 2002 recently that had the angled ones. The old G-vans and Express vans I have seen were straight with mounting plates. Generally speaking they are all pretty easy to adapt. Especially considering you can even mount the booster itself upside down.

[jim_in_dorris]

Then I guess i will remove it before I send the van to the crusher

[JeepsAndGuns]

Weird...I only seem to see the angled ones here. I had both a 97 and a 2002 recently that had the angled ones.

Made me curious, so I did a little looking online and it looks like the 95 and older had the flat mounting plate, and the 96 and newer had the angled plate.

[Fast355]

Made me curious, so I did a little looking online and it looks like the 95 and older had the flat mounting plate, and the 96 and newer had the angled plate.

My 10 year old Autozone water pump started leaking the other day. Got it swapped out under warranty. Got a good picture of the March underdrive pulleys.

[Fast355]

Looking at picking up the 24x coil per cylinder conversion for this tank. I have a spare set of low mileage D585 style truck coils with the external heatsinks. I also have a spare 2003 Express van 6.0L harness to rob the coil wiring out of. Word on the street is the D585s give out 3x more spark energy than even the LS1 coils do and have dyno'd up to 10 hp over the LS1 stock coils no less the old L31s single coil distributer setup. I cannot wait to twist this thing to 6,000 rpm with great spark energy. I have seen claims of 20+ hp on a LT1 with the same setup.