Aftermarked Overdrives

Aardvaark · 06-08-2009

Just what I need behind my TH180.
If it just wasn't over $3K new.

Gear Vendors universal remote OD.

guyopel · 06-08-2009

It would be cheaper to install a later model OD trans.

Lindsay · 06-08-2009

Overdrive unit probably would not fit in a GT, but wonder if it would fit a Manta, 1900, etc.? GT drive shaft is already very short.

namba209 · 06-08-2009

Got one of those in the motorhome, so now, instead of an automatic 4-speed tranny, I have an 8-speed semi-automatic tranny. A couple of notes on the unit, it cannot be used to decellerate. That would eat the clutch pack after a while. The unit is capable of handling over 1000 HP and full throttle up shifting. In the motorhome, during full throttle, 1st gear acceleration, at 20 MPH the unit will up shift and the whole motorhome will shudder from the instantaneous engagement of the unit. An awesome feeling, and with 2 overdrive gears, we figure to have paid the unit off after about 10,000 miles of travel.

2 Fast 4 U · 06-08-2009

Link to Gear Vendors

2 Fast 4 U · 06-08-2009

Originally Posted by Lindsay

Overdrive unit probably would not fit in a GT, but wonder if it would fit a Manta, 1900, etc.? GT drive shaft is already very short.

It would be a tight fit

06-08-2009	#2 (permalink)
guyopel Member Join Date: Feb 2003 Location: Duluth,Ga. Posts: 643 Real Name: John Provided Answers: 2	It would be cheaper to install a later model OD trans. __________________ Guyopel I have not failed - I've merely found 10,000 ways that won't work." ---Thomas Edison It's amazing what God lets man get away with when lightning is so cheap. Mark Twain

06-08-2009	#4 (permalink)
namba209 6,000 Post Club Join Date: Aug 2002 Location: Imperial Beach, CA South of San Diego Posts: 6,054 Provided Answers: 6	Got one of those in the motorhome, so now, instead of an automatic 4-speed tranny, I have an 8-speed semi-automatic tranny. A couple of notes on the unit, it cannot be used to decellerate. That would eat the clutch pack after a while. The unit is capable of handling over 1000 HP and full throttle up shifting. In the motorhome, during full throttle, 1st gear acceleration, at 20 MPH the unit will up shift and the whole motorhome will shudder from the instantaneous engagement of the unit. An awesome feeling, and with 2 overdrive gears, we figure to have paid the unit off after about 10,000 miles of travel. __________________ Ron 72 GT 3.4L V-6/T-5/ZF posi - almost done - Just need AC installed. 75 Chevy monza 5.7L/TH350/Auburn 3.08 posi - Next

06-08-2009	#5 (permalink)
2 Fast 4 U Detroit,where my home was Join Date: Oct 2005 Location: Maria - Hoop, The Netherlands Posts: 2,210 Real Name: Erick Provided Answers: 5	Link to Gear Vendors __________________ Opel Ascona; driving one is like living on the edge. Only built from 1970 - 1975

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06-08-2009	#3 (permalink)
Lindsay Opeler Join Date: Jul 2003 Location: San Diego, CA Posts: 506 Provided Answers: 1	Overdrive unit probably would not fit in a GT, but wonder if it would fit a Manta, 1900, etc.? GT drive shaft is already very short.

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