Tomorrow's the day...engine and rear end/disc brake swap at the

same time. I have already searched and read all related posts.

Now, before I tear into this, I just want to make sure I have all

bases covered. The car is a 92 Trans Am / LB9 305 TPI / 700r4 /

10 bolt posi drum / 2.73 gear. My donor car is an 87 IROC / Fresh

rebuild LB9 / 700r4 / 9 bolt posi disc / 3.23 gear.

As far as the rear swap goes...yank the old...slip in the

new...change the driven speedo gear from 37 tooth red to 44 tooth

dk. gray...swap the e-brake cables all the way to the lever since

the 92 does not have the adjusting mechanism...then bleed em.

Master cylinder and propo valve in the 92 should work fine...Did

I miss anything?? Any tips on the e-brake??

The engine swap is straight forward...just swapping the long

block. The one in the TA was seized up when I bought it...the

IROC had an overhaul less than 10k miles ago. I'm gonna pull the

engine/tranny together since the seized engine won't turn at all

to allow me to get to the flexplate to convertor bolts...swap

trannies out of the car and drop it back in.

I have recruited the help of a mechanic buddy and my 14 year old

son (who is always tons of help and is learning alot about cars)

and I have access to a shop with a lift and air. Our target is 8

hours start to finish. Hopefully we can get it done in twice

that...hehe.

Any last minute suggestions?? I'll let you know what happens.

Thanks in advance
TurbineJock

turbinejock@yahoo.com




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There is no substitution for cubic inches!

 

May have problems with the brake lines, two differnet type of fittings.

 

The IROC has almost new lines...I planned to use them...are the fittings different on the frame end? If so...do I have to replace the frame lines as well? Think I'll go out and do a visual and see if I can tell for sure.

Thanks a million...that would spoil the day if everything else was great but I couldn't drive home cause of the brakes.

TIA

 

I don't think the fittings are differant.

It was the pre 85 Fittings that were Standard Vrs Metric if I recall properly.

You should Be Good to Go.



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60 Ranchero - Project ( Money Hole )
85 Sport Coupe LG4 - Daily Driver 14.82 @ 91.1 (faster than Ed)
Reader's ride -> My Ride

Just another Hot Rod kid, or thats what they all tell me.
Livin' the Stereotype

 

B&I, i just did a similar swap. 88 9 bolt into an '82 in place of a 10 bolt drum. The disk brakes on the 9 bolt were toast and they're expensive. Plus the pre 89 brakes are so-so at best. I put the drums on the 9 bolt, my car does'nt know the difference. It saved me about $500 in parts but cost me some time to swap it over. Not a difficult swap, but a little time consuming. Just thought i'd throw that out there FWIW. When i first started the rear swap, i was syked i was going to have disk brakes but after analisis, i'm glad i still have my drums.

You should be able to get an adapter for any SAE/Metric vise-versa for your brake lines. It just takes an hour searching through the drawers at a NAPA.

Good luck!

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Kenney
82 Trans Am WS7 notchback
83 Trans Am WS6 T-tops
Painter @ Chevy dealer
GM junkie