4L60 Re-Rebuild for my C20

[LTZ C20]

I'll give Hughes a call then. BD, I already have a B&M cooler hooked up. It's all plumbed with steel hard lines and SAE hose rated for ATF. I use only Dexron VI ATF. Tho I am considering switching to the heavy duty Dex VI, only thing with that is that it is very expensive.

[LTZ C20]

I just got off the phone with Hughes Performance. They recommended the GM22LXTM, which is the 1st of the 4 that I posted on page 2.

[Irish_Alley]

with a 1800 stall???

[Irish_Alley]

do they offer anything lower?

[LTZ C20]

Not sure. But that's what they said and I told him my cam specs, gears and tires.

[Irish_Alley]

did you tell him about towing

[bd]

http://hughesperformance.com/xtm-xfm/

[LTZ C20]

did you tell him about towing

Yep

[LTZ C20]

http://hughesperformance.com/xtm-xfm/

Looking at the GM chart, 700R4/4L60 30 spline options, the GM21LFUEL is a 1200 stall. The GM22LTOW is an 1800 stall. The GM22LXFM does not provide a stall rating and the GM22LXTM is an 1800 stall. All 4 models are between 350 and 400 bucks.

[VileZambonie]

I can't believe you had two "trans tech's" tell you it was fine to reuse the converter after a complete failure especially with a SRTA!

[LTZ C20]

I can't believe you had two "trans tech's" tell you it was fine to reuse the converter after a complete failure especially with a SRTA!

I think the reason they said that was because the fluid was perfect BUT the first guy said it's fine without actually seeing it as he now lives in Idaho. The second one said it is fine to reuse if you want too. Just the seal caused it to fail. But none the less, I'm going to replace it now and so far it appears that the Hughes GM22LXTM is my best option.

[LTZ C20]

So the trans tech just told me he can get me a new converter for about 100 bucks. It is a PDQ brand, he said it was an HD version of the stock, it has a heavy duty reinforced bearing. Stall speed is 1200-1600.

[bd]

Stall speed is 1200-1600.

Based on what criteria?  Multiple part numbers?  Dependent on engine torque?  If one P/N ranges 1200 - 1600 RPM for a given application - that's not a big confidence builder!  LOL

Not knockin' it, just askin'.  lol

[LTZ C20]

Stall speed is 1200-1600.

Based on what criteria?  Multiple part numbers?  Dependent on engine torque?  If one P/N ranges 1200 - 1600 RPM for a given application - that's not a big confidence builder!  LOL

Not knockin' it, just askin'.  lol

I asked him if that was the case. I assumed different part numbers as well. He said nope, one converter. I think it depends on available torque. That's all the info I could get. I tried searching the  PDQ website but I couldn't't find anything that matched the info I already had.

[Rattler12]

JMHO but your cam appears to be a little radical for a towing low torque producing engine. The LSA of 110 degrees is passing a lot of fuel mixture in and out until rpm rise makes everything catch up. The lumpity lump sounds great but kills low end