ScorpioV8

I've built a 5.3(L33)- 4L60e combo into a UK Mazda RX8 and its running and driving fine. The gerabox makes a distinct 'clunk' as it changes into 3rd gear, so I'm thinking its on its way home. I have the 4L65E that came with the engine and I'm planning on swapping over the tailsahft and housing to 2WD. I also have the stock truck (Sierra 1500 Extended cab) converter which I guess has a low stall speed. I've been offered a converter from a late 1990's LS Camaro, so likely a better stall for a 1300Kg car. But will it work with my 2005 4L65E?

The only numbers I can find on the Camaro converter are 079A8, TMAX 2420, a big green dot with 8325 overwritten on it.

On the truck converter it has TMBX 2422, a big yellow dot with 7948 written on it.

Can anyone decode these for me? I'm in the UK so I can't nip out and buy a new one down the road ;-)

Circle-D_Brian

Unfortunately those converters are both going to be the same stall speed. The difference lies in the lockup clutch lining material used. The TMBX will have a woven material and the TMAX will have the carbon material. This has been my experience anyway from the converters I have cut.

-Brian

ScorpioV8

Don't mind the stall, so long as it will fit. Which clutch material is best for a light car running 3.9:1 gears on the street?

Circle-D_Brian

The Camaro converter will fit physically. I personally would run whichever one has the fewest miles and would not worry much about the clutch lining type.

-Brian

ScorpioV8

Thanks Brian, I'll go with the truck unit, it only had 22,000 on it.