A light-tack blue assembly gel that holds thrust washers, seals, checkballs, and clutch parts in place during a transmission build, then dissolves clean the moment the unit sees fluid and heat.
Anyone who has stacked up a clutch drum or set a thrust washer on the end of a shaft knows the aggravation of the part sliding out of place the second you flip the assembly over to drop it in the case. Assemblee Goo is the fix for that. It is a light-tack gel you smear on the part to hold it exactly where you set it, so the washer stays seated, the checkballs stay in their pockets, and the lip seal does not fall off the piston while you line everything up and lower it home.
The reason it belongs on a transmission bench instead of a tube of ordinary grease is what it does after assembly. It will not melt or run during the build, but the moment the unit fills with ATF and comes up to operating temperature the gel dissolves and disperses completely. It does not clog the filter, plug a valve body orifice, block a feed screen, or hang up a check valve, which is exactly the trouble you invite when you use heavy grease to hold parts in an automatic. This blue version is the light-tack grade, the right choice for smaller parts and delicate seals where you want hold without fighting the goo back off.
It is water soluble and safe on prolonged skin contact, so cleanup is soap and water and you are not coating your build in something aggressive. One 16 oz jar lasts across a lot of rebuilds since a little dab holds a part. If you build automatics, this is one of those quiet shelf items that saves you from chasing a dropped checkball down into a case you already have half assembled. Ships from the USA.
| Type | Light-tack assembly gel (blue) |
| Size | 16 oz jar |
| Holds | Thrust washers, seals, checkballs, clutch parts |
| Dissolves | Clears completely at operating temperature in ATF |
| Safe for | Filters, orifices, screens, and valves |
| Cleanup | Water soluble, safe on skin |
