TURTLE GREEN

Im looking to sway a 3.4 into my 89 and i can get a 3.4 with the whole harness and computer with a 90 day warranty on it for 750 but its backed behind an automatic. i heard somewhere that you cant use the ones backed behind an auto because the manual pilot bushing wont work, is this true?

Elvota

There has been some off and on debate as to whether all 3.4 crankshafts have been machined to accept the pilot bearing. It's my understating that it has been determined that all 3.4's actually have this hole in the crank, so you should be good to go.

However, using a 3.4 Auto ECM with a 5SPD can be problematic. Would require a better understanding of the wiring than what I have. You could always find a 3.4 Manual ECM... but that's going to add to your costs.

__________________

1990 4Runner | V6 3.4 | 5spd | 240 someoddthousand miles | SR5 | SAS | RLS | 35's | ARB | TJM | 217 to 1 | W8000

- four wheels | three sticks | two hands | one trail -

TURTLE GREEN

very true never thought about that, thanks for your help man

yotaman

All 3.4's have the hole. 95-97 wiring harness's have differnt plugs for auto and manual ECU's. You can use an auto ECU to get the motor to run.

__________________
Greg - http://www.pureyota.com --- you can't fail if you don't give up.

Proud dad of a little girl..

1. 1997 Tacoma - 3.4 auto - SAS'd - DD
2. 1995 4Runner - SAS'd - FJ62 Front - FZJ80 Rear, 40" Iroks - Beater!
3. 1995 4Runner - 3.4 swapped - Baby mobile/Grocery getter!

You can lose a lot of money chasing women, but you'll never lose women chasing money.

UKMyers

Pilot bearing in the SEARCH yielded 360 threads. I could have answered your question with about 8 of the first few threads that it popped up with.

__________________
2006 Tacoma TRD offroad 4.0 Access Cab 6 sp 3" Revtek, 285 BFG's, Borla Catback, Volant Intake, Billet Grill, Split Second PSC1 Professionally dyno tuned, URD Short Shifter Kit, 226 RWHP
1994 4-Runner SR5 5 Speed SASed, Detroits, Armored, Dual Cases, 37" MTR's See my build up thread here http://www.yotatech.com/showthread.php?t=104000

JGrund85

If you don't mind seeing about 8 check engine lights the auto wiring harness and ECU will work just fine...that being said I am still having some issues with getting mine to run. I had yotaman build me a plug and play harness. Worked really well since I hate wiring things myself and spending hours looking at wiring diagrams.

__________________
91' 4Runner, 3.4L swap, SAS, 4" front 5" rear trail gear lift, 5.29's, detroits front and rear, sliders, 1st gen roll bar, Longfields, Addicted Offroad front winch bumper, 35x12.50x15 Mickey Thompson Baja MTZ's