GM 4L60E ADAPTER TO GM NP205 27 SPLINE

This adapter was originally used on GM 4wd trucks 1971-79 equipped with a TH350 automatic transmission with the NP205 cast iron, part time transfer case. This kit allows the newer GM 4L60E to bolt to the NP205 transfer case

Thansmission

In 1996, GM produced a newer version of its electronically controlled 4L60E. This 4L60E transmission is 21-1/2" long, and has a removable bellhousing. It has a hex bolt pattern on the output side of the transmission, similar to a TH400.

The 51-0405 adapter was designed to make this style of 4L60E look just like a 700R. By incorporating a new clamp-on reluctor ring and sensor on this adapter, a 40 pulse per output shaft revolution signal is generated for the drivetrain control module. This adapter kit comes with a new clamp-on reluctor ring that should be installed on the new 700R output shaft that is also part of this kit. This clamp-on reluctor ring clamps over the stock governor gear on the 700R output shaft. We have provided two reluctor sensor locations to choose from in the adapter. The hole not being used will need to be plugged with the plug provided.

The one piece GM 700R4 output shaft used in this kit is made out of 4340 alloy steel. This output shaft is manufactured with the highest quality materials and standards as the OEM output shaft.

This main shaft kit can also be used with the 4L60 and 4L60E overdrive automatic transmissions.

Bill Of Materials

PLUG-22MM RELUCTOR SENSOR PLUG / 716079

GM 700R/4L60E NYLON BUSHING / 716082

GM AUTO TRANSMISSION O RING / 716511

SHAFT- 700R OUTPUT TO NP203/205 T/C / 52-6900

COUPLER- GM 27SP TRANS X GM 27SP TC (3.627 OAL) / 52-9503B

RELUCTOR- 700R INTEGRAL CLAMP / 716072

GASKET-73-79 NP205 LARGE BORE / 716572

ADAPTER- 4L60E TO NP205 / 51-5302A

ADAPTER- 4L60E/700R4 UNIVERSAL / 51-0405

SENSOR- SPEEDOMETER / 300619

SEAL-STOCK 205 TO TH350 ADAPTER / 716745

10mm-1.5THR X 40mm S.H.C.S. black oxide / 720046

10mm X 1.5 X 45mm S.H.C.S. full thread / 720074