gear vendors od

[chpr1972]

any one using a gear vendors od with a muncie 4 speed? like or hate it. lemans conv ,496 bbc with 232/238 515 lift hyd roller, 10:1 compression, muncie 4 speed, ,3:50 ford 9 in posi, 25.4in tall 19" wheels. 3000rpm at 60 mph. Cruiser not drag or track car. Plan on a 3-5000 mile trip this summer if health will permit.

[JodysTransmissions]

I have seen transmission failures using a GV unit behind a stock Muncie. The 319 aluminum alloy of a stock Muncie case will stretch with repeated full throttle shifts using the GV unit.

The AutoGear (356 aluminum alloy) SuperCase with the 1-1/2" thrust button will eliminate the case stretch.

Your stats: 60 MPH with a 3.50:1 and 25.4" tires = 2778 RPMs The GearVenders unit has a .78:1 OD. Your new 60 MPH RPMs would be 2778 x .78 = 2167 RPMs.

Things look a lot different when your driveline is engineered on paper. Only you can decide if the $2895.00 is worth the cost to save 611 RPM at 60 MPH.

[chpr1972]

thanks for info. the price of a gear vendors od and a 5 speed are close together. I can not afford a t56 or a lgt 700 as both are over $4000. I hear of all the problems with the tko 600 and cost to rebuild one, and since mr murphy sits on my shoulder all the time I am afraid I will get a bum one. The motor is only 500 to 525 hp and I get on it a lot but I will not drag or autocross it the tk0600 would do the job.

[TheJDMan]

Where are you seeing a T56 Magnum for $4000? The price I see is $2995 which is only $100 more the the GV unit. For the extra $100 you get a complete new transmission and two over drive gears. The problem I see with the GV unit is that you basically spend the cost of a new transmission and still have to use your old 4 speed.

http://www.hurst-drivelines.com/?page_id=4416

[sanman]

any one using a gear vendors od with a muncie 4 speed? like or hate it. lemans conv ,496 bbc with 232/238 515 lift hyd roller, 10:1 compression, muncie 4 speed, ,3:50 ford 9 in posi, 25.4in tall 19" wheels. 3000rpm at 60 mph. Cruiser not drag or track car. Plan on a 3-5000 mile trip this summer if health will permit.

I have a GV behind a TH350 powered by a zz383 2800 stall and love it!! My cruising RPM at 70 was 3000, now 2100. Made my car a lot more distance driving friendly. My friend has a GV behind his muncie in a 69 Z28. He to thinks its the best thing ever especially not having to alter a un molested Z28 other than the drive line. Sure Tremecs are cool but I personally am very happy with my GV. The folks at GV are always there for you too.

[JodysTransmissions]

Sadly the math doesn't work out for your RPM drop. The OD ratio of the GearVendors OD is .78:1.

3000 x .78 = 2418 RPM

[sanman]

Jodys trans

Here is a tissue for you!!!

[Jody SS]

I contemplated on the same thing. I went with the Gear Vender OD for my M21 Muncie. My car is still in the restoration process so I have no performance input yet. Yes the T-56 is only a couple hundred more, but you still have additional costs beyond that, bell housing, shifter, etc. so the cost is more. The guys at Gear Venders are A++++ in customer service.

[JodysTransmissions]

Jodys trans



Here is a tissue for you!!!

Thanks Chris!