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Downey Header On 3.0 Auto #562353 02/03/05 02:37 AM
Joined: Nov 2004
Posts: 92
Smoke Offline OP
Getting the Wheeling Fever

I've found two articles on the installation of the Downey headers but both are the manual trans. I'm looking for ideas or suggestions on the relocation of the tranfer case fluid cooler and other than the under the drive shaft crossover pipe. I like the around the rear of the transfer case exit but can't seem to figure out the placement of the fluid cooler. I know Downey make a floorboard relocation kit but really don't know how it's routed! Anybody out there got an idea on this subject or have information or pic's on your installation?? Thanks for any and all replies!!


94 P/U Ex-Cab 3.0 Automatic 4X4
Re: Downey Header On 3.0 Auto [Re: Smoke] #562354 02/03/05 08:44 AM
Joined: Apr 2000
Posts: 4,282
ldivinag Offline
Roll Me Over
cant help you on the routing since i swapped out to a 96 tranny for mine...

but i do suggest you use high temp coating or header wraps to keep the temp down.

now, i have starter issues since it gets hot in there and heat soak is killing it.


leo d.

90 4runner, v6, auto, WCOR CitB kit,
marlin duals, arb rear, tt front
4.88, blah, blah, blah...

Pres. of TEAM IFS! and
GETTING OFF 4WD Club member
Re: Downey Header On 3.0 Auto [Re: ldivinag] #562355 02/03/05 09:32 AM
Joined: Apr 2002
Posts: 3,568
Snowtoy Offline
Roll Me Over
Sumit Racing sells heat shielding pretty reasonably. When I installed theheaders this past spring I bought about $30 worth, the starter blancket cost the most at $15. I put the heat shielding material everywhere that was close to the header.

The distance between the header and thefire wall on the passenger's side is about a 1/2" ww/o a body lift. You can take a hammer and beat in the wall to allow for more clearance, or run some heat shielding that has an adhesive back(this is what I did.

I ran the exhaust between the driveline and the transmission, rather than under it. I had to cut about 3" off of the header pipe to get it turn the corner. The front driveline just clears the pipe(rubs a little in reverse), and there is about a 1/2" between it and the tranny. I have a 5 speed and a 4" lift, so I am not sure if you have enough room to do this w/o a suspension lift or with the auto.


More than tread lightly. Leave it like you were never there, nor anyone else.
'90 X-cab 4.88's 33 BFG AT's, rr ARB, Headers, Ignition upgrade, cold air induction.
'91 X-cab 5.29's 315's BFG MT's, rr ARB, custom bumper and flatbed
Re: Downey Header On 3.0 Auto [Re: Snowtoy] #562356 02/03/05 02:23 PM
Joined: Nov 2004
Posts: 92
Smoke Offline OP
Getting the Wheeling Fever
Thanks for the replies!!


94 P/U Ex-Cab 3.0 Automatic 4X4

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