Jump to content
HybridZ

horizontal driveline check


Recommended Posts

I couldn't find any info on an easy way to check the driveline alignment in the horizontal plane when swapping in a v-8.

 

I can see using a bubble level to check alignment in the vertical plane, but how do you check it in the horizontal plane with out any special equipment.

 

I thought about putting a flat surface on both ends (tranny and diff) and hanging a plumbers bob at all four corners (two back and two front) but I wasn't sure how accurate that would be. Anybody got any ideas?

Link to comment
Share on other sites

Everyone got their own ways of doing this but here is what I did to mine. I make several measurements of the stock driveline at various points: 1. From the center of the crankshaft to the frame rails and center of crankshaft to the top of the frame rails.2. From the driveshaft to the top of the tunnel and sides of the tunnel at various points along the driveshaft. This is because you don't know how long the newer driveline will be. Then when you put the new driveline in and try to get it to stay parallel to the old driveline as possible (horizontal and vertical).

 

On my LS1 I got it dead on with the old driveline (on the horizontal plane). Since the crankshaft of the V8 is sitting lower (1 1/4") than the stock crank (L6) I will have to lower the rear the same amount. I have the same part car here with the stock driveline in it and that helps alot. I posted a question about this awhile back so do a search. Good luck

Link to comment
Share on other sites

I was a little hesitant to use the frame as a reference because I wasn't sure it was exactly parallel, but it is probably good enough. Of course, this method also assumes the rear differential is also parallel to the frame.

 

What did you title the thread you mentioned? I searched for a while, but decided to press the easy button hoping someone would have something easy. Your solution sounds like it will work.

Link to comment
Share on other sites

On my LS1 I got it dead on with the old driveline (on the horizontal plane). Since the crankshaft of the V8 is sitting lower (1 1/4") than the stock crank (L6) I will have to lower the rear the same amount. I have the same part car here with the stock driveline in it and that helps alot. I posted a question about this awhile back so do a search. Good luck

 

Why do you have to lower the rear? As long as the planes are parallel you should be fine with 1-2" offset in ceterline.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...