TH700R4 AUTOBOX SLIPPING ON KICKDOWN

Moderators: Regional Representative, Technical Advisor

Forum rules
Only fully subscribed club members may post in this section. Please keep these threads on topic.
Post Reply
User avatar
simonb33
POC Jr. Poster
Posts: 122
Joined: Fri Nov 04, 2011 8:52 am
Year: 1977
Model: 77/78 Trans Am
Engine: 66
Name: si
Location: Cornwall
Location: Uk
Contact:

TH700R4 AUTOBOX SLIPPING ON KICKDOWN

Post by simonb33 » Tue Feb 24, 2015 8:00 pm

I have a 87 5.7 gta and the autobox is slipping a bit on kickdown and it does slip a bit between 2nd and 3rd but does go in . does anyone have a replacement or know of someone or a company in the southwest / cornwall that can rebuild it any help would be appreciated thanks

User avatar
Davy J
POC Posting God
Posts: 3337
Joined: Fri Oct 09, 2009 3:41 pm
Membership No: 09-R61
Year: 1999
Model: FIREHAWK
Engine: 350
Name: DAVE
Location: Clacton Essex
Location: ESSEX
Contact:

Re: TH700R4 AUTOBOX SLIPPING ON KICKDOWN

Post by Davy J » Tue Feb 24, 2015 8:45 pm

Have a word with Richard at Alders Automotive. They can do repairs and maybe could supply a replacement gearbox. Contact details on the Sponsors page.
Dave. Vice Chairman & Publicity Manager

User avatar
simonb33
POC Jr. Poster
Posts: 122
Joined: Fri Nov 04, 2011 8:52 am
Year: 1977
Model: 77/78 Trans Am
Engine: 66
Name: si
Location: Cornwall
Location: Uk
Contact:

Re: TH700R4 AUTOBOX SLIPPING ON KICKDOWN

Post by simonb33 » Tue Feb 24, 2015 8:58 pm

thank you

User avatar
simonb33
POC Jr. Poster
Posts: 122
Joined: Fri Nov 04, 2011 8:52 am
Year: 1977
Model: 77/78 Trans Am
Engine: 66
Name: si
Location: Cornwall
Location: Uk
Contact:

Re: TH700R4 AUTOBOX SLIPPING ON KICKDOWN

Post by simonb33 » Tue Feb 24, 2015 9:00 pm

only problem is there in east sussex and I am in cornwall :-(

User avatar
bhm1712
Site Admin
Posts: 2672
Joined: Sun May 10, 2009 4:58 pm
Membership No: 20-607
Year: 2001
Model: Trans-Am WS6
Engine: 350
Name: Ian
Location: Nottingham
Location: Nottingham
Contact:

Re: TH700R4 AUTOBOX SLIPPING ON KICKDOWN

Post by bhm1712 » Tue Feb 24, 2015 9:40 pm

How about these guys if you can't travel that far?

http://www.cdtransmissions.com

On your doorstep.
Ian Hopkinson - Membership Manager & Forum Administrator
Northern England & Midlands Rep

Image

User avatar
simonb33
POC Jr. Poster
Posts: 122
Joined: Fri Nov 04, 2011 8:52 am
Year: 1977
Model: 77/78 Trans Am
Engine: 66
Name: si
Location: Cornwall
Location: Uk
Contact:

Re: TH700R4 AUTOBOX SLIPPING ON KICKDOWN

Post by simonb33 » Tue Feb 24, 2015 9:45 pm

thanks . I went into see them today there not very good they didn't want to get involved with the 700r4 no idea why its not as complex as modern trannies . they didn't even come out and look they just looked out the window and didn't want to get involved

User avatar
bhm1712
Site Admin
Posts: 2672
Joined: Sun May 10, 2009 4:58 pm
Membership No: 20-607
Year: 2001
Model: Trans-Am WS6
Engine: 350
Name: Ian
Location: Nottingham
Location: Nottingham
Contact:

Re: TH700R4 AUTOBOX SLIPPING ON KICKDOWN

Post by bhm1712 » Tue Feb 24, 2015 11:19 pm

Oh dear - So their claim of "any make and model" isn't worth anything!

Well you have 3 options as far as I see it then:

Take it to autopontiac

Take it to alders automotive

Or pull it and rebuild DIY!

Oh there's one more - get a replacement or recon and fit it.

For you down in St Austell the first 3 are all a pain in the bum for distance or labour involved for yourself!

I know Tom at Autopontiac does all the transmission rebuilds and is a dab hand at it, never used alders but they specialise in automatics so know their stuff. There's also a place in Nottingham which definitely does 700r4 but obviously that's way too far for you.
Ian Hopkinson - Membership Manager & Forum Administrator
Northern England & Midlands Rep

Image

User avatar
simonb33
POC Jr. Poster
Posts: 122
Joined: Fri Nov 04, 2011 8:52 am
Year: 1977
Model: 77/78 Trans Am
Engine: 66
Name: si
Location: Cornwall
Location: Uk
Contact:

Re: TH700R4 AUTOBOX SLIPPING ON KICKDOWN

Post by simonb33 » Wed Feb 25, 2015 8:45 am

thanks for the advice I will try to find a replacement first and have this one rebuilt so I have a spare its actually not terrible but it isn't quite right


User avatar
simonb33
POC Jr. Poster
Posts: 122
Joined: Fri Nov 04, 2011 8:52 am
Year: 1977
Model: 77/78 Trans Am
Engine: 66
Name: si
Location: Cornwall
Location: Uk
Contact:

Re: TH700R4 AUTOBOX SLIPPING ON KICKDOWN

Post by simonb33 » Thu Feb 26, 2015 7:55 am

I didn't realise they rebuilt boxes thanks mate will give them a call

Old Bird

Re: TH700R4 AUTOBOX SLIPPING ON KICKDOWN

Post by Old Bird » Thu Feb 26, 2015 12:45 pm

Worth a try, i knew them when it all started. But Rods dont pay the bills, so they do commercial trucks too, but good guys and worth a shot.

jonbullnose
POC Newbie
Posts: 91
Joined: Tue Mar 31, 2009 10:53 pm
Membership No: 14-A367
Year: 1972
Model: bully/parrisiene
Engine: 400
Name: Jon Steel
Location: Reading, Berks
Location: berkshire
Contact:

Re: TH700R4 AUTOBOX SLIPPING ON KICKDOWN

Post by jonbullnose » Thu Feb 26, 2015 6:03 pm

your slippage is most likely cuase by the front clutch pack worrn out but sometime is the valve body if you are not use to working on auto boxes i would buy a rebuilt one with garentee as part alone can cost the price of a rebuilt box and things like valve bodys really need to be sent away and tested on a high pressure test bed so it can be checked underf full working pressue only only a few places have theese we use to do auto boxes but it is to much agro with the modern boxes with gearbox control modules and often ecu has to be flashed with dealer software to sort out shift patterns ect at least your box will be pretty basic :thumb:

User avatar
bhm1712
Site Admin
Posts: 2672
Joined: Sun May 10, 2009 4:58 pm
Membership No: 20-607
Year: 2001
Model: Trans-Am WS6
Engine: 350
Name: Ian
Location: Nottingham
Location: Nottingham
Contact:

Re: TH700R4 AUTOBOX SLIPPING ON KICKDOWN

Post by bhm1712 » Fri Feb 27, 2015 10:23 am

That's what was wrong with mine when it went. Slipped on kick down to begin from 3rd to 2nd. Got gradually worse and then one day lost drive completely. Turned out the front clutch pack wore out and then metal began to eat into the drum so I had to have new parts.

Cost a lot !
Ian Hopkinson - Membership Manager & Forum Administrator
Northern England & Midlands Rep

Image

jonbullnose
POC Newbie
Posts: 91
Joined: Tue Mar 31, 2009 10:53 pm
Membership No: 14-A367
Year: 1972
Model: bully/parrisiene
Engine: 400
Name: Jon Steel
Location: Reading, Berks
Location: berkshire
Contact:

Re: TH700R4 AUTOBOX SLIPPING ON KICKDOWN

Post by jonbullnose » Sat Feb 28, 2015 8:48 am

yeah some times you can get a crack on the drum wich drops the pressure in the box causing it to slip, normally if it has cracked in drive from a stand start it will take time to pick up speed and slip

User avatar
simonb33
POC Jr. Poster
Posts: 122
Joined: Fri Nov 04, 2011 8:52 am
Year: 1977
Model: 77/78 Trans Am
Engine: 66
Name: si
Location: Cornwall
Location: Uk
Contact:

Re: TH700R4 AUTOBOX SLIPPING ON KICKDOWN

Post by simonb33 » Mon Mar 02, 2015 4:05 pm

thanks for all the help guys I have hopefully managed to do a deal with a really nice chap for my wheels

Old Bird

Re: TH700R4 AUTOBOX SLIPPING ON KICKDOWN

Post by Old Bird » Mon Mar 02, 2015 8:22 pm

Well done !! If its with who i think it is, he's a superb guy and your onto a winner.

User avatar
simonb33
POC Jr. Poster
Posts: 122
Joined: Fri Nov 04, 2011 8:52 am
Year: 1977
Model: 77/78 Trans Am
Engine: 66
Name: si
Location: Cornwall
Location: Uk
Contact:

Re: TH700R4 AUTOBOX SLIPPING ON KICKDOWN

Post by simonb33 » Sat Mar 07, 2015 5:52 pm

he is a very nice chap and really looks after his car . we are doing the deal in the next couple of weeks

Post Reply

Who is online

Users browsing this forum: No registered users and 4 guests