Vacuum Modualtor Push Rod - Printable Version

Vacuum Modualtor Push Rod - Printable Version

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Vacuum Modualtor Push Rod - nickoluswiebel - 05-13-2021

Hello, I recently replaced my vacuum modulator in my 1994 Geo Tracker with the 3spd auto trans 3L30 (th180) . Apparently the push rod fell out and I didn’t notice and now I need a replacement. It looks to be a roll pin. Anybody know where I can find a replacement or what size pin it is? Thanks in advance and I hope you can help.

RE: Vacuum Modualtor Push Rod - fixkick - 05-13-2021

(05-13-2021, 12:39 PM)nickoluswiebel Wrote: Hello, I recently replaced my vacuum modulator in my 1994 Geo Tracker with the 3spd auto trans 3L30 (th180) . Apparently the push rod fell out and I didn’t notice and now I need a replacement. It looks to be a roll pin. Anybody know where I can find a replacement or what size pin it is? Thanks in advance and I hope you can help.

3speed modulator on rear for 3L30, and the right color code , correct? the color matches weight of car. (lots there are just for this 1 part) purple is corrct for this 2door car.

well, Autozoned does not sell those, nor suzuki and nor GM now.
there are only 3 places. (if at all)

1: wreckering yards, but they'd never take down a good box just for you. car-part.com (example1)

2: Ebay. or googling by correct P/N. (low demand and so few buyers now, makes this hard to find here. All I see is this....

3: transmission parts houses sell parts for most transmissions. https://www.transmissionpartsusa.com/TH180_3L30_transmission_parts_s/652.htm

the transmission is TH180 box, by GM, many were made in their French factory there, and used even on all very old now, USPS mail trucks. 2door right and drive. 1973 first.
the 3L30 is just mod, by GM to make it fit on a 4wd transfer case. that adapter. do you have 4wd box?

here is the parts blow up, by GM.

https://fixkick.com/tranny/slush/slide3L30/html/image_4.html

see part 160, in that serial chain of parts. you lost part 163 and or 164.

suzuki shows part 24 lost?

ID24: is suzuki p/n (Suzuki actual, shows discontinued on all these boxes) GM same. as you can see part 26 comes with the new MOD 25
26936-61a30

[Image: 3L30A.jpg]

off my TH180 page ,my list:

3L30 TH180: The 3 speed box. 1968 to NOW. Pure Hyramatics. (but may or may not have TCC)

1981–1986 Bitter SC
1971–1975 Opel Ascona A/Manta A/Rekord 1900
1969–1973 Opel GT
1971–1983 Fiat 124
1975–1978 Fiat 131
1975–1981 Fiat Brava
1977–1979 Peugeot 604
1981–1982 Fiat Spider
1983– Rover Vitesse
–1984 Rover 2300/2600
1969–1975 Opel Olympia; Kadett B/C
1968–1986 Some Opel-Vehicles (for example Opel Rekord-C to E and Opel Commodore-A to C Series)
1978–1987 Chevrolet Chevette (most smart people, crushed the car and sold it as raw metal in brick form to USS.)
1981–1987 Pontiac T1000
1987–1994 Grumman LLVeh. postal van 100,000 USPS postal RHD cars. LL = long life.
1989–1998 Suzuki Sidekick, mostly on USA 2 door cars. (most ended 3speed in 1995 USA)
1989–1998 Geo Tracker (ditto)
1969–1980 Holden Torana
1970–1980 Holden Belmont/Kingswood/Premier/GTS
1970–1971 Holden Brougham
1970–1977 Holden Monaro
1971–1984 Statesman
1978–1988 Holden Commodore