overdrive in a th350?

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beermonkey9417

Royal Smart Person
Apr 8, 2007
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des plaines, il
is it possible to put over drive on a th350? and if not what kind of trany would i need? i want decent gas milage but also be able to jump outa the hole quickly.
 

axisg

Comic Book Super Hero
Jul 17, 2007
2,686
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200R4 is an O/D transmission capable of both. I could be wrong but I have never heard of a TH350 trans with OD
 

joe_padavano

Royal Smart Person
Sep 13, 2006
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Northern VA
beermonkey9417 said:
is it possible to put over drive on a th350? and if not what kind of trany would i need? i want decent gas milage but also be able to jump outa the hole quickly.

The only way to put overdrive on a TH350 is to use a Gearvendors OD unit. Expect to pay upwards of $2200, not counting driveshaft and crossmember mods. Or, get a 200-4R as noted above.
 

Cole

Not-quite-so-new-guy
Sep 28, 2007
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Kitchener, Ontario, Canada
A 7004R will let you "jump outa the hole" quicker than your th350 or a 2004r. It will make 3.73 gears feel like 4.11 would with a th350 in first gear.

That said, it would definitely require both a new crossmember and driveshaft mods. The 2004R would just require the crossmember.
 
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