Adding an overdrive gear system.
Adding an overdrive gear system.
http://www.gearvendors.com/prices.html
ForcedInduction
06-15-2010, 11:08 AM
#2
No doubt, but good luck fitting anything that size in the tunnel. Even then, a new unit costs about the average value of the car.
http://www.gearvendors.com/prices.html
--But, Its Small enough, 'bout 6" diameter!
Had a ratio of 0.86 as I recall.....
![[Image: 300TDnoplate.jpg]](http://i190.photobucket.com/albums/z128/alastairhcii/300TDnoplate.jpg)
Alastair E
06-15-2010, 01:18 PM #3The old Laycock-de Normanville Overdrive from the 60's Rootes group cars, (Crysler) would be a good size, Pretty small, but prolly near impossible to fit, Usually, it formed the 'extension-housing' of the gearbox bolted up to the main case. The Output shaft of the box was a special, and formed the imput-shaft of the Overdrive...
--But, Its Small enough, 'bout 6" diameter!
Had a ratio of 0.86 as I recall.....
Reason:
The gear vendors relies on line pressure to shift. Line pressure is achieved by the pump in the GV unit which is driven by the output shaft of the Benzomatic.
Bottom line:
The shift from 1st gear to 1st over would take an hour but the shifts would get better the faster you are moving.
If you are only interested in using it as an overdrive after 4th gear then you would be fine.
1982 300D Turbo ... 3,6xxlbs, No fan, No AC, Hood Stack, No ALDA, No rear bumper and stuffed front, A/W Intercooled, Injectors by Greezer and HUGE Pre-Chambers with help from OM616 & Simpler=Better, Fuel Cranked up, 60 Trim Compressor wheel, EGT, EMP, Boost 50" Rigid Radius bar on roof Aux tank for a total of 48 Gal Of Diesel! Odyssey PC-1750 Battery in trunk, 27"x8.5"/R14 Maxxis BigHorn Mud Terrains, In June '14 issue of Off Road Mag
AX15 Jeep Trans swap in progress....
Captain America
06-15-2010, 01:56 PM #4The Gear Vendors Is crap! Dont do it!!!!!!
Reason:
The gear vendors relies on line pressure to shift. Line pressure is achieved by the pump in the GV unit which is driven by the output shaft of the Benzomatic.
Bottom line:
The shift from 1st gear to 1st over would take an hour but the shifts would get better the faster you are moving.
If you are only interested in using it as an overdrive after 4th gear then you would be fine.
1982 300D Turbo ... 3,6xxlbs, No fan, No AC, Hood Stack, No ALDA, No rear bumper and stuffed front, A/W Intercooled, Injectors by Greezer and HUGE Pre-Chambers with help from OM616 & Simpler=Better, Fuel Cranked up, 60 Trim Compressor wheel, EGT, EMP, Boost 50" Rigid Radius bar on roof Aux tank for a total of 48 Gal Of Diesel! Odyssey PC-1750 Battery in trunk, 27"x8.5"/R14 Maxxis BigHorn Mud Terrains, In June '14 issue of Off Road Mag
AX15 Jeep Trans swap in progress....
(06-15-2010, 01:18 PM)Alastair E The old Laycock-de Normanville Overdrive from the 60's Rootes group cars, (Crysler) would be a good size...
That's a name from way out of the past! My Dad had a Triumph TR3 equipped with one of those. Had a switch on the dash to engage/disengage.
1998 MB E300 - 194,000 miles. Current/future mods: 7.5mm pump elements, Holset HX40 Turbo feeding Eaton M90 supercharger through custom fabbed intake system. Aeroturbine muffler, scratch-built 4" stainless exhaust. EGR eliminated, ECM recalibrated, modified rack position feedback circuit. Porterfield RS brake pads, Bilstein sport shocks, VDO EGT, oil and boost gauges.
2000 Ford F250 - 150,000 miles. Current/future mods: DP Tuner 3 map chip, scratch-built high flow intake, high output IDM, open circuit fuel system, ball bearing turbo, South Bend full metal clutch, slotted and drilled rotors. Autometer Sport Comp EGT and boost gauges.
(06-15-2010, 01:18 PM)Alastair E The old Laycock-de Normanville Overdrive from the 60's Rootes group cars, (Crysler) would be a good size...
That's a name from way out of the past! My Dad had a Triumph TR3 equipped with one of those. Had a switch on the dash to engage/disengage.
1998 MB E300 - 194,000 miles. Current/future mods: 7.5mm pump elements, Holset HX40 Turbo feeding Eaton M90 supercharger through custom fabbed intake system. Aeroturbine muffler, scratch-built 4" stainless exhaust. EGR eliminated, ECM recalibrated, modified rack position feedback circuit. Porterfield RS brake pads, Bilstein sport shocks, VDO EGT, oil and boost gauges.
2000 Ford F250 - 150,000 miles. Current/future mods: DP Tuner 3 map chip, scratch-built high flow intake, high output IDM, open circuit fuel system, ball bearing turbo, South Bend full metal clutch, slotted and drilled rotors. Autometer Sport Comp EGT and boost gauges.
1987 300SDL 6spd manual om606.962 swap project
1985 300td euro 5spd wagon running
willbhere4u
06-15-2010, 08:40 PM #6I was thinking the electric overdrive unit from an old Volvo modified to on to a Benz 4spd would be cool but a good amount of work!
1987 300SDL 6spd manual om606.962 swap project
1985 300td euro 5spd wagon running
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