RF1A Forward 4 Inch Shift Transfer Case Remanufactured
This transfer case is remanufactured with Trail-Gear and OEM Components. The low-speed gear, countershaft, and input shaft are all Trail-Gear. It uses Genuine Toyota Seals, OEM Output shaft, Idler shaft, and High-Speed gears. The bearings are Koyo and feature Triple Drilled Flanges.
All transfer case pieces are glass beaded and all surfaces are machined flat, to ensure a perfect seal.
*The 23-spline output shaft is intended to be used behind an R151 as a single case or the rear case in a dual case application.*
This Transfer Case Does NOT include a Shifter
$350 Core Charge
1 Year Warranty
10 Day Lead Time
Identifying the RF1A
You are able to identify if you have an RF1A transfer also known as the Toyota Gear Driven case by the number of bolts on the back case cover. If you have 7 bolts on the cover you have an RF1A, Gear Driven case. If you only have 5 bolts then you have a chain driven case.
Difference between Top and Forward Shift Transfer cases
The Differences between Top Shift and Forward shift is fairly self explanatory. A Top Shift RF1A will have the shifter directly on top of the reduction box and alternatively a forward shift RF1A will have shift rails extending out the front with a block off plate on top of the reduction box.
Top Shift Transfer Cases
1979- 7 of 1983 Pick-Up/Hilux
Forward Shift 4″ Transfer Cases
Forward Shift 4.5″ Transfer Cases
8 of 1983-8 of 1988 Pick-Up/Hilux and 4Runner
1986-1987 Pick-Up/Hilux and 4Runner
For stock applications the only transfer cases that used 23 spline are the 1986 and 1987 Turbo trucks and 4Runners. All other stock 1979-1995 trucks and 4Runners used the 21 spline. If you are build a dual case set up or custom application the 23 spline output shaft is stronger than the 21 spline. However it is important to know your application to be sure it will work in your attend application.