rocker panel replacement - Nissan : Datsun ZCar forum :Nissan Z Forum: 240Z to 370Z
User Tag List

LinkBack Thread Tools
post #1 of 5 (permalink) Old 03-17-2010, 10:14 PM Thread Starter
Join Date: Feb 2010
Posts: 36
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
(Thread Starter)
rocker panel replacement

On a scale of 1 to 10 how hard is it to replace with the tabco?

78 Black Pearl under current restoration
sbrokerboy is offline  
Sponsored Links
post #2 of 5 (permalink) Old 03-18-2010, 03:18 AM
Senior Member
Join Date: Jul 2007
Location: SF Bay Area
Posts: 1,299
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Begs the question....

On a scale of 1-10, how are your welding/bodywork skills?
LeonV is offline  
post #3 of 5 (permalink) Old 03-18-2010, 01:30 PM
Posts: n/a
Mentioned: Post(s)
Tagged: Thread(s)
Quoted: Post(s)
Re: rocker panel replacement

Full replacement of the rockers is very difficult. You have to remove front fenders, pull interior parts along the bottom of the door, seats, carpets and the hard part, breaking open the rear quarters spot welded to the back of the rockers , then cut the rocker out and remove the lip that is spot welded to the floorboards and inner walls of the front and rear fenders.

If you have a couple holes in the visible area but the inners are clean and structurally is still strong but with holes in it, you have 2 options.

1) cut holes out and patch weld the holes. This takes a lot of patience, time and if you aren't used to it, luck. getting it lined up just right is important to match curves so be patient. You have to tack weld it in, then stitch weld it in keeping things cool so that you don't burn through the metal and so that you keep your sparks under control for the carpet and floor insulator protection. Fires and smoulering stink and can be bad if you aren't attentive.

2) Other option is chemical bonding. You cut the new rocker to the shape to fit over as much of the exposed area, a long piece that fits almost like a jigsaw puzzle.
then strip the whole old one as much as you can of paint along the outside edges for a good inch or more to make a full border of clean steel. Do the same on the inside of the replacement section.

Here is where you need 3M chemical bonding agent that is commonly used by bodyshops and avialable at NAPA. It's not popular with the old timers who favor welding but it's very strong, used commonly and much cheaper, faster and easier than welding. You smear it on both sides, stick 'em together and walk away, let it cure overnight. If you put a bit extra, you can even use it as a seam filler/sealer at the overlap and blend it in nicely. Sand all that down to shape, sealer/primer it, paint it. Done. Very easy.
Hardest part of this process is to cut the new replacement to the proper shape making sure not to block any of the drain holes in the rockers and if there are any that have closed up, open them up again. Be patient and take your time.

I can send you pics of completed chemical bonding appearance if you like. I've got the fenders off the car right now so you can see underneath after a couple years what it looks like. It's still clean and fresh and looks new.
post #4 of 5 (permalink) Old 03-18-2010, 05:08 PM
Senior Member
Join Date: Jan 2009
Posts: 209
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Re: rocker panel replacement

off topic for or bp friend

a set of bp alloys went for only $202.50 on ebay yesterday.. was that you.

were at a $100 until the last hr

zstuff70-89 is offline  
post #5 of 5 (permalink) Old 03-18-2010, 06:08 PM
Join Date: Dec 2007
Posts: 30
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Re: rocker panel replacement

Hi, do you have pictures of the damaged area ?

ess is offline  
Closed Thread

Quick Reply

Register Now

In order to be able to post messages on the Nissan : Datsun ZCar forum :Nissan Z Forum: 240Z to 370Z forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

  Similar Threads
Thread Thread Starter Forum Replies Last Post
where to buy a rocker panel? SurfColorado 70-83 Tech Discussion Forum 7 09-17-2004 06:32 AM
My rocker panel is in! Patti 280ZX 70-83 Tech Discussion Forum 5 10-22-2003 11:19 PM
will 76 rocker panel fit 78?? rita 70-83 Tech Discussion Forum 1 12-09-2002 08:06 AM
Rocker Panel Unknown User 70-83 Tech Discussion Forum 2 04-02-1999 12:01 AM
83 ZXT 2+2 Rocker panel Unknown User 70-83 Tech Discussion Forum 0 11-10-1998 04:40 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome

Content Relevant URLs by vBSEO 3.6.1