TH350 Clutch Module 1969-1986, new and ready to install. Fits the TH350. Ships fast from the USA.
A Turbo 350 that has gone soft into Drive, slurs the 2-3 shift or smells burnt at the dipstick usually has one thing in common: tired friction plates. This is an Allomatic 000352 friction module, an OE-style replacement set for the GM TH350 from 1969 through 1986. It carries 17 frictions in one box: 9 forward and direct, 5 low and reverse and 3 intermediate. It is the stock-rebuild choice for the Chevrolet, GMC, Pontiac, Oldsmobile and Buick cars and half-ton trucks that left the factory with this transmission.
Every gear in a TH350 is a combination of applied clutches. Drive 1st uses the forward clutch and the low roller clutch. For 2nd, the intermediate clutch in the pump applies and, through the intermediate overrun roller clutch, stops the sun gear from turning backward. For 3rd, the direct clutch locks the sun gear to the input while the forward clutch stays on. Reverse uses the direct clutch together with the low and reverse clutch at the rear of the case. A friction pack that has lost lining thickness lets its piston travel further and apply late, so the shift stretches out, the engine flares, and the extra heat damages the steels and fluid. Replacing all four packs at once keeps the apply timing even across every gear. Allomatic and Raybestos are sister brands built in the same plants, and this module matches the 9/5/3 plate layout of the standard Raybestos TH350 pack.
Because the TH350 has no electronics and sets no codes, diagnosis is hands-on. Check the fluid level hot, pull the vacuum line at the modulator and look for fluid in it, and confirm the kickdown cable is adjusted. If all of that is good and the unit still slips, note which gears slip. Our TH350 common problems guide lays out which clutch is applied in each range, and the valve body testing guide helps separate a hydraulic fault from a burned pack. A pan full of friction material settles it either way.
Allomatic lists this module for 1969-1986 GM TH350 transmissions. Within that span GM used different plate counts on different model codes: the 1975 GM manual shows three or two intermediate plates and five or four low and reverse plates, and the heavy-duty 375B version used five direct plates where the 350 used four. Count the plates that come out of your unit and check them against this module, and match the model code stamped on the case. The lockup TH350C used in many 1980s cars and trucks may need a different forward and direct count, so tell us your year and VIN if you have a C model. You can see all TH350 parts on our TH350 parts page.
| Fits | TH350 1969-1986 |
| Part type | Clutch Module |
| Condition | New |
| Brand | GM |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
17 frictions: 9 forward and direct, 5 low and reverse and 3 intermediate. Steel plates are not included.
It is listed for 1969-1986 TH350, but some TH350C units use a different forward and direct plate count. Count your old plates or send us your year, VIN and case code before ordering.
Allomatic and Raybestos are sister brands built in the same plants. This module uses the same 9/5/3 layout as the standard Raybestos TH350 friction pack.
Yes, if they are flat, smooth and an even color. GM says to replace steels that show heat spots or surface scuffing.
Dexron automatic transmission fluid. Soak the new frictions in the same fluid before assembly.
