TH350 rebuilders ?
Discussion
Before I take my Camaro TH350 to bits and order a master rebuild kit from the US is there anyone in the UK that is able to rebuild this trans ?
I am quite capable but it takes time to get parts from the US and I know I will find something else that needs doing once I am in the damn thing and have to wait for that to arrive as well so I would prefer to send it to someone who has parts in stock and is set up to sort it quickly, painlessly and for a decent price.
I am in Cornwall, but can transport the trans to pretty much anywhere south-ish between here and London, Anyone recommended ?
I am quite capable but it takes time to get parts from the US and I know I will find something else that needs doing once I am in the damn thing and have to wait for that to arrive as well so I would prefer to send it to someone who has parts in stock and is set up to sort it quickly, painlessly and for a decent price.
I am in Cornwall, but can transport the trans to pretty much anywhere south-ish between here and London, Anyone recommended ?
Thanks folks, I did have a bit of a ring around a few but I have decided to do it myself, I have rebuilt a 4l60E recently and have discovered they are very similar and many of the special tools I made for the 4L60E will be useful for the TH350. Finding a rebuild kit for around £100 that included all the bushes as well as the steels and frictions was a bonus, I think because they are common transmissions the parts are cheap even for half decent or good quality stuff, there were certainly cheaper options when it came to the kits, I chose the upper end of the market without wanting to get into modifications or upgrades for big BHP.
A mate in Fremont is bringing it all back in a few weeks when he comes over for a couple of weeks.
A mate in Fremont is bringing it all back in a few weeks when he comes over for a couple of weeks.
The 4L60E was interesting. It was the first one I ever did and boy was it different from the little GM180s I had been used to.
My 95 Astro van lost 1st and overdrive and went into limp mode so I went through all the electronics tests and they came up ok, I pulled the pan and found sludge, then I removed the trans and stripped it. I ended up buying a GM assembly manual and that was amazingly detailed. It even gave dimensions for all the special tools needed. Lucky ihave a lathe and lots of alloy bar stock !
Heat had killed it, the steels were warped and the frictions were baby smooth.
Done a few hundred miles in it now and touch wood it seems very good, smooth and good changes.
My 95 Astro van lost 1st and overdrive and went into limp mode so I went through all the electronics tests and they came up ok, I pulled the pan and found sludge, then I removed the trans and stripped it. I ended up buying a GM assembly manual and that was amazingly detailed. It even gave dimensions for all the special tools needed. Lucky ihave a lathe and lots of alloy bar stock !
Heat had killed it, the steels were warped and the frictions were baby smooth.
Done a few hundred miles in it now and touch wood it seems very good, smooth and good changes.
This was a tiny selection of the 4L60E clutches and steels:
This was the crack I found in the pump housing, I had wondered why the bellhousing was so wet when I pulled the trans, I thought the seal was leaking but the inside surface of the torque converter was dry where it ought to have been wet if the shaft was leaky.
And just one of the piston seals:
I put these pics up just in case anyone thinks I might be some kind of billy bulls
t, a few folks (in the real world) have told me that they don't believe I did the box myself.
I kind of enjoyed it but it took ages to get parts from the US, the pump was a bugger, I ended up buying another junk trans and re-vaning the pump in that. I was not sure I wanted to get into another trans and do the TH350 but a bit of research indicates it is an easier job this time.
The "Pile":
This was the crack I found in the pump housing, I had wondered why the bellhousing was so wet when I pulled the trans, I thought the seal was leaking but the inside surface of the torque converter was dry where it ought to have been wet if the shaft was leaky.
And just one of the piston seals:
I put these pics up just in case anyone thinks I might be some kind of billy bulls
t, a few folks (in the real world) have told me that they don't believe I did the box myself. I kind of enjoyed it but it took ages to get parts from the US, the pump was a bugger, I ended up buying another junk trans and re-vaning the pump in that. I was not sure I wanted to get into another trans and do the TH350 but a bit of research indicates it is an easier job this time.
The "Pile":
chevy-stu said:
Brave chap.. gearbox rebuild, especially an auto, is something I could never see myself contemplating...
I'd imagine the TH350 is way simpler and more info around to help the task..
Auto's are satisfying really - just take your time;I'd imagine the TH350 is way simpler and more info around to help the task..
After having boxes lasting barely into double digit mileages, I finally worked out a a combination of parts that would hold behind a turbocharged 350 chevy in a heavy 4x4. The last rebuild
has been going 5 years now.
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