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That sleeve seems to bottom out on the aluminum drum ? I do not see the usual gap for oil flow to apply the over run piston & clutch pack ?
Posts by Crosley
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That sleeve seems to bottom out on the aluminum drum ? I do not see the usual gap for oil flow to apply the over run piston & clutch pack ?
Joined
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10,482 Posts
It appears Sonnax altered the design of the sleeve. Which is a good thing. The 3 stand offs could damage the aluminum drum if pressed on too far.
Joined
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10,482 Posts
I have not seen the need for Kolene steels in all the clutch packs in the 700 - 4L60 trans. In the 700 - 4L60 series trans , the only dynamic shifting steels and frictions are the 3-4 clutch pack. Buy a quality clutch pack for the 3-4 set.
In 1st, the forward clutch applies.
Shift to 2nd gear is a band.
Shift to 3rd gear is the 3-4 clutch, buy a quality pack here.
Shift to 4th gear is the band again.
A dynamic - shifting clutch is one that is under power - moving. When you shift to reverse in the 4L60 trans, you should be stopped. Reverse input clutch applies, the low-reverse apply.
The over run clutch is not a shifting clutch pack. You should never downshift at high pace of speed from overdrive to 3rd gear. You can burn the over run frictions (2) easily.
If kolene steels make you warm and fuzzy , buy them. I have heard there is a shortage of them in some locations.
In 1st, the forward clutch applies.
Shift to 2nd gear is a band.
Shift to 3rd gear is the 3-4 clutch, buy a quality pack here.
Shift to 4th gear is the band again.
A dynamic - shifting clutch is one that is under power - moving. When you shift to reverse in the 4L60 trans, you should be stopped. Reverse input clutch applies, the low-reverse apply.
The over run clutch is not a shifting clutch pack. You should never downshift at high pace of speed from overdrive to 3rd gear. You can burn the over run frictions (2) easily.
If kolene steels make you warm and fuzzy , buy them. I have heard there is a shortage of them in some locations.
Joined
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10,482 Posts
Photos kinda show wear on the teeth at the ring gear and shaft. Check the ring gear snap ring groove area. Crud likes to build up there.
Ignore the rough aluminum drum. Most of them look like that.
I suggest a kit to over size the AFL valve assembly in the valve body. Its always worn in a high mileage 4L60E and can cause main line pressure problems. It requires a reamer tool to fit the brand of kit you buy. Sonnax has an AFL 4L60E kit, TransGO also has a kit. TransGO kit is much easier to use and install. I used hundreds of them over the years. Lube the snot on the reamer tool if you do that. Usualy you can use a pick tool and check the AFL valve wear as it is still in the valve body. They wear a lot since that valve is always moving a bit. For those reading and wondering about this: the 4L80E suffers with AFL wear too..
TransGo AFL kit comes with or without the reamer tool. You need the reamer. Both kits are a bit pricey. Sonnax is more $$ than the TransGO kit.
If a corvette servo is installed and a concern on ruff shifts? Do not enlarge the shift feed holes in the separator plate. If you replace the OEM boost valve , stay with the same diameter size of boost valve. Boost valves wear out in high mileage too. You can have the advantage of larger servo surface apply with corvette type servo , not the harsh shift.
A wide band for 2-4 gears must have a flat drum surface as mentioned. Always check the drum for level surface with a straight edge. Check a new too. If you reuse the drum , scuff the surface with 320 grit wet... NOT cross wise, scuff in the direction the band rides. Dull surface is good, not ruff surface
If you tow stuff, I suggest the Sonnax billet over drive servo. I have used them for over 200k miles on my own vehicles
Ignore the rough aluminum drum. Most of them look like that.
I suggest a kit to over size the AFL valve assembly in the valve body. Its always worn in a high mileage 4L60E and can cause main line pressure problems. It requires a reamer tool to fit the brand of kit you buy. Sonnax has an AFL 4L60E kit, TransGO also has a kit. TransGO kit is much easier to use and install. I used hundreds of them over the years. Lube the snot on the reamer tool if you do that. Usualy you can use a pick tool and check the AFL valve wear as it is still in the valve body. They wear a lot since that valve is always moving a bit. For those reading and wondering about this: the 4L80E suffers with AFL wear too..
TransGo AFL kit comes with or without the reamer tool. You need the reamer. Both kits are a bit pricey. Sonnax is more $$ than the TransGO kit.
If a corvette servo is installed and a concern on ruff shifts? Do not enlarge the shift feed holes in the separator plate. If you replace the OEM boost valve , stay with the same diameter size of boost valve. Boost valves wear out in high mileage too. You can have the advantage of larger servo surface apply with corvette type servo , not the harsh shift.
A wide band for 2-4 gears must have a flat drum surface as mentioned. Always check the drum for level surface with a straight edge. Check a new too. If you reuse the drum , scuff the surface with 320 grit wet... NOT cross wise, scuff in the direction the band rides. Dull surface is good, not ruff surface
If you tow stuff, I suggest the Sonnax billet over drive servo. I have used them for over 200k miles on my own vehicles
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