Borg-Warner (Rancho) Overdrives
For in depth info on These overdrives you can check out This piece by classicbroncos.com it is very informative and helpful to understand these overdrives.
T-90, Dana-18, and Borg-Warner Overdrive Assembly
T-90, Dana-18, and Borg-Warner Overdrive Assembly; Painted and Ready to Install
Reconditioned D-20 Borg Warner overdrive assmebly $500
Reconditioned with new bearings, seals, small parts. Comes with rebuilt governor. Does not include solenoid. 6 Volt or 12 volt solenoid, speedometor cable and engagement cable available seperatly.
All Overdrives use 80-90w weight oil, GL-4 is ideal. Do NOT use synthetic oil.
I carry the following electrical components for the Borg-Warner Overdrive:
Governor gear (used)————————–$ 20.00
New Reverse rail switch (image)—-original——$ 30.00
12-Volt new solenoid (image)——————$ 330.00
6-Volt new solenoid—————————–$ 330.00
New relay (from England) (images)—-original—-$ 85.00
New kick-down switch (image)—-original——–$ 46.00
Overdrive engagement cable assembly w/ bracket (image)—–$ 68.00
Externally fused 6 volt relay (image)————————-$ 185.00
Externally fused 12 volt relay (images)———————-$ 75.00
Borg-Warner R-10 Needles, includes 12, (image) – $20.00
Borg-Warner R-11 Needles, includes 12, – $25.00
Replacement speedometer cable and housing, teardrop style w/clamp—$ 68.00
Replacement speedometer cable and housing, standard style————–$ 16.00
Borg-Warner Book for R-10 & R-11 Overdrives by Randy Rundle (image)—–$ 15.00
Borg-Warner replacement governor gear ( 3 styles available) ————–$20.00 ea
Borg-Warner R-10 3 gear pinion cage – $150.00
Borg-Warner R11 4 gear pinion cage – $350.00
If you need any other internal component parts, please call, I have an extensive supply of used Borg-Warner parts available.
Other Borg-Warner Overdrive replacement hard parts available.
Borg-Warner Blown-up Schematic