fluid in a tremic 3550

leathal injection · 05-18-2004, 04:44 PM

whats up guys, the UPS guy just dropped off my 3550 gearbox, my question is could u use dextron III ATF for a substitute for the GM syncromesh fluid ? any feedback would great ! thanks guys

- Dave

302 LX Eric · 05-19-2004, 08:25 AM

I would stick with the GM Syncomesh fluid. It's what Tremec recommends.

Just go down to your local GM dealer and buy some from the parts dept. It's about $11-$12 a quart.

E

420nitro · 05-19-2004, 08:34 AM

I agree 100%
I even called several different dealers around my house and the price varied by a couple of bucks per quart!
Good Luck

05-18-2004, 04:44 PM	#1
leathal injection Registered Member Join Date: Mar 2004 Location: Long Island Posts: 58	fluid in a tremic 3550 whats up guys, the UPS guy just dropped off my 3550 gearbox, my question is could u use dextron III ATF for a substitute for the GM syncromesh fluid ? any feedback would great ! thanks guys - Dave __________________ 1990 Mustang GT Engine- 308 (bored .40 over) Probe Forged pistons (10.5:1), Scat forged crank and rods, w/Main Girdle, AFR 185 heads, GT-40 intake, CSI electric water pump. AC delete kit, No smog pump, Manual rack and pinion steering. Ignition- MSD 6AL, MSD Blaster coil, MSD hellicore wires. Drive Train- Tremic 3550, Alum. Drive shaft, 3:73 gears, Stock carrier and axels. 26X11.5 M/T Et streets. Power adder- 175 shot of laughing gas. Best ET 11.5 @120mph on squeeze, 12.4 @109mph on muscle (on gt40 heads) on the 185 heads ... ??? tba

05-19-2004, 08:25 AM	#2
302 LX Eric or '331 LX Eric' Join Date: Jan 1999 Location: Columbus, Ohio Posts: 2,142	I would stick with the GM Syncomesh fluid. It's what Tremec recommends. Just go down to your local GM dealer and buy some from the parts dept. It's about $11-$12 a quart. E __________________ 1991 5.0 LX Coupe - 40,750 miles 331 cu. in. / Tremec 3550 / BFG Drag Radials 12.22 @ 114.31 mph - w/1.89 60'

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05-19-2004, 08:34 AM	#3
420nitro Registered Member Join Date: Nov 2003 Location: Rockford Posts: 596	I agree 100% I even called several different dealers around my house and the price varied by a couple of bucks per quart! Good Luck