4L60 vs 700R4
Question:
> Gary what the heck do you know? 
> The last company I worked for the van I drove had about 350,000 miles on the > 4L60E when it was retired. Never opened the tranny other than fluid change > every 25,000 miles, except for a bad shift solenoid. > The damn things are junk! > Greg
By the way, the tranny was still going strong, the original 5.7 finally gave up! The engine was untouched other than a timing chain, cam and lifters at 250,000 miles! It did not need rebuilding as the oil consumption was still very low, compression good. Greg
Response:
there was obviously something wrong with the truck, and that specific tranny…Im close to 90,000 miles on my 98 Sonoma’s 4L60E and all I ever did was have the fluid changed at about 60K Jason
Response:
> not true > the 3/4 clutch pack is the weak point
Yep, the 3/4 clutch wears sooner than the others. So far, I’ve had sun shells fail in two transmissions at between 75,000 and 80,000 miles. When I took the tranny on second one apart, with the exception of a couple of clutch plates in the 3/4 stack, I could still read the printing on them. But there was still lots of friction material left. > oh, and the sun shell is used for more than R and 4th
I give. What else is it used for? When my trannies failed, I lost 4th and Reverse. 1st, 2nd and 3rd continued to function. As far as I know, no torque is transferred through that part when running in those gears. – Hide quoted text — Show quoted text -> The sun shell that engages for reverse and 4th gear is the weak link in > the > 4L60. Not many rocks get crawled in 4th gear. > > That’s funny– a lot of rock crawlers use them for their rigs, and > that’s > a > > MUCH more abusive use than most folks will put them to. > > > > 4L60 = 700R4 > > > > what specifically is ‘not good’ about them? > > > They blow apart after a short life. I have heard newer ones are ok. > But > > > I have not seen it yet. So I’m beginning to wonder about that > trans… > > > I wish there was a non electronic version of the Turbo 400 with > > > overdrive.
Response:
– Hide quoted text — Show quoted text -> not true > the 3/4 clutch pack is the weak point > Yep, the 3/4 clutch wears sooner than the others. So far, I’ve had > sun shells fail in two transmissions at between 75,000 and 80,000 > miles. When I took the tranny on second one apart, with the exception > of a couple of clutch plates in the 3/4 stack, I could still read the > printing on them. But there was still lots of friction material left. > oh, and the sun shell is used for more than R and 4th > I give. What else is it used for? When my trannies failed, I lost > 4th and Reverse. 1st, 2nd and 3rd continued to function. As far as I > know, no torque is transferred through that part when running in those > gears.
I’d venture that you had 1 and 3 + lock-up a broken sun shell will negate 2-4-R (band holds reverse drum, and thus sun shell, in 2 and 4, causing rear planet to work in OD mode) – Hide quoted text — Show quoted text -> > The sun shell that engages for reverse and 4th gear is the weak link in > the > > 4L60. Not many rocks get crawled in 4th gear. > > > That’s funny– a lot of rock crawlers use them for their rigs, and > that’s > a > > > MUCH more abusive use than most folks will put them to. > > > > > 4L60 = 700R4 > > > > > what specifically is ‘not good’ about them? > > > > They blow apart after a short life. I have heard newer ones are ok. > But > > > > I have not seen it yet. So I’m beginning to wonder about that > trans… > > > > I wish there was a non electronic version of the Turbo 400 with > > > > overdrive.
Response:
not true the 3/4 clutch pack is the weak point oh, and the sun shell is used for more than R and 4th
– Hide quoted text — Show quoted text -> The sun shell that engages for reverse and 4th gear is the weak link in the > 4L60. Not many rocks get crawled in 4th gear. > That’s funny– a lot of rock crawlers use them for their rigs, and that’s > a > MUCH more abusive use than most folks will put them to. > > > 4L60 = 700R4 > > > what specifically is ‘not good’ about them? > > They blow apart after a short life. I have heard newer ones are ok. > But > > I have not seen it yet. So I’m beginning to wonder about that trans… > > I wish there was a non electronic version of the Turbo 400 with > > overdrive.
Response:
>The one in my truck gave out after 230,000 miles. Change your fluids, >change your fluids, change your fluids
Amen Brother…mine went 240K (90 GMC F/S Jimmy) Carroll Senn Columbia, SC
Response:
218K here, and it had been severely abused by the previous owner. 89 S-10 4X4 Blazer.
– Hide quoted text — Show quoted text ->The one in my truck gave out after 230,000 miles. Change your fluids, >change your fluids, change your fluids > Amen Brother…mine went 240K (90 GMC F/S Jimmy) > Carroll Senn > Columbia, SC
Response:
The sun shell that engages for reverse and 4th gear is the weak link in the 4L60. Not many rocks get crawled in 4th gear.
– Hide quoted text — Show quoted text -> That’s funny– a lot of rock crawlers use them for their rigs, and that’s a > MUCH more abusive use than most folks will put them to. > > 4L60 = 700R4 > > what specifically is ‘not good’ about them? > They blow apart after a short life. I have heard newer ones are ok. But > I have not seen it yet. So I’m beginning to wonder about that trans… > I wish there was a non electronic version of the Turbo 400 with > overdrive.
Response:
Are they the same transmission? I got a response about the code 32, but not sure if it applies to my vehicle. Snowman
Response:
They are not the same transmission – I have not heard a lot of good things about the 700R4. — Merc Thundersnake#16 69 Mach 1 clone, Merc scoop, Merc steering wheel, Merc 351 W 78 f-250 XLT supercab 4×4, 400 C6. 94 Chev 3500 Crewcab 4×4 http://www.geocities.com/fordguru69/Mach1Muscle.html
– Hide quoted text — Show quoted text -> Are they the same transmission? I got a response about the code 32, but > not sure if it applies to my vehicle. > Snowman
Response:
Sorry for the misinformation -the 4L60E is just a more electronically controlled version of the 4L60 (700-R4). — Merc Thundersnake#16 69 Mach 1 clone, Merc scoop, Merc steering wheel, Merc 351 W 78 f-250 XLT supercab 4×4, 400 C6. 94 Chev 3500 Crewcab 4×4 http://www.geocities.com/fordguru69/Mach1Muscle.html
– Hide quoted text — Show quoted text -> They are not the same transmission – I have not heard a lot of good things > about the 700R4. > — > Merc > Thundersnake#16 > 69 Mach 1 clone, Merc scoop, Merc steering wheel, Merc 351 W > 78 f-250 XLT supercab 4×4, 400 C6. > 94 Chev 3500 Crewcab 4×4 > http://www.geocities.com/fordguru69/Mach1Muscle.html > Are they the same transmission? I got a response about the code 32, > but > not sure if it applies to my vehicle. > Snowman
Response:
– Hide quoted text — Show quoted text -> 4L60 = 700R4 > 4L60E = electronically controlled 700R4 > what specifically is ‘not good’ about them? > Gary what the heck do you know? > The last company I worked for the van I drove had about 350,000 miles on the > 4L60E when it was retired. Never opened the tranny other than fluid change > every 25,000 miles, except for a bad shift solenoid. > The damn things are junk! > Greg
to this day I still get 1-2 trucks a year where the owner wants me to take out the 350 conversion and put a 700 back in last summer I did TWO where some idiot in a neighboring town had taken out a 4L60E and put a 350 in it, one a 94, one a 96 they took the solenoids and internal harness out and hooked them up to the vehicle plug, wrapped the whole thing in plastic bubble-pack material, and stuffed it under the passengers seat ! when that didn’t stop the ‘check engine’ light from coming on (P1870 code), they disconnected the light!
Response:
The one in my truck gave out after 230,000 miles. Change your fluids, change your fluids, change your fluids
Response:
That’s funny– a lot of rock crawlers use them for their rigs, and that’s a MUCH more abusive use than most folks will put them to.
– Hide quoted text — Show quoted text -> 4L60 = 700R4 > what specifically is ‘not good’ about them? > They blow apart after a short life. I have heard newer ones are ok. But > I have not seen it yet. So I’m beginning to wonder about that trans… > I wish there was a non electronic version of the Turbo 400 with > overdrive.
Response:
> 4L60 = 700R4 > 4L60E = electronically controlled 700R4 > what specifically is ‘not good’ about them?
Gary what the heck do you know? The last company I worked for the van I drove had about 350,000 miles on the 4L60E when it was retired. Never opened the tranny other than fluid change every 25,000 miles, except for a bad shift solenoid. The damn things are junk! Greg
Response:
> 4L60 = 700R4 > what specifically is ‘not good’ about them? > They blow apart after a short life. I have heard newer ones are ok. But > I have not seen it yet. So I’m beginning to wonder about that trans… > I wish there was a non electronic version of the Turbo 400 with > overdrive.
so you base this on ‘I’ve heards’ and ‘have not seen it yets’ ????
Response:
> 4L60 = 700R4 > what specifically is ‘not good’ about them?
They blow apart after a short life. I have heard newer ones are ok. But I have not seen it yet. So I’m beginning to wonder about that trans… I wish there was a non electronic version of the Turbo 400 with overdrive.
Response:
>They blow apart after a short life. I have heard newer ones are ok. But >I have not seen it yet. So I’m beginning to wonder about that trans… >I wish there was a non electronic version of the Turbo 400 with >overdrive.
Tony Kimmell Normal, IL
Response:
You can install a 4L80E in a non-computer truck. All it takes is a dedicated computer and fancy wiring harness. The aftermarket has realized the demand for the 4L80E. Of course, they demand a stack of Ben Franklins to make it happen! Dean – Hide quoted text — Show quoted text ->4L60 = 700R4 >what specifically is ‘not good’ about them? >They blow apart after a short life. I have heard newer ones are ok. But >I have not seen it yet. So I’m beginning to wonder about that trans… >I wish there was a non electronic version of the Turbo 400 with >overdrive.
Response:
4L60 = 700R4 4L60E = electronically controlled 700R4 what specifically is ‘not good’ about them?
– Hide quoted text — Show quoted text -> They are not the same transmission – I have not heard a lot of good things > about the 700R4. > — > Merc > Thundersnake#16 > 69 Mach 1 clone, Merc scoop, Merc steering wheel, Merc 351 W > 78 f-250 XLT supercab 4×4, 400 C6. > 94 Chev 3500 Crewcab 4×4 > http://www.geocities.com/fordguru69/Mach1Muscle.html > Are they the same transmission? I got a response about the code 32, > but > not sure if it applies to my vehicle. > Snowman
Response:
you haven’t been listening then.
– Hide quoted text — Show quoted text -> They are not the same transmission – I have not heard a lot of good things > about the 700R4. > — > Merc > Thundersnake#16 > 69 Mach 1 clone, Merc scoop, Merc steering wheel, Merc 351 W > 78 f-250 XLT supercab 4×4, 400 C6. > 94 Chev 3500 Crewcab 4×4 > http://www.geocities.com/fordguru69/Mach1Muscle.html > Are they the same transmission? I got a response about the code 32, > but > not sure if it applies to my vehicle. > Snowman
