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doing a 5-speed swap,will 4 cyl. tranny work in 5.0

  • Thread starter Thread starter 90lxboost'n
  • Start date Start date Apr 26, 2006
9

90lxboost'n

Member
Jan 1, 2006
55
0
6
Ohio
Apr 26, 2006
#1
  • Apr 26, 2006
  • #1
We are going to do an AOD to 5 speed swap and the only local trannys we can find are 4 cyl. trannys. Will this work on a stock 5.0 with just a bellhousing swap. Also what all will we need to do this conversion and how to get the pedal assembly out of the car.. Will the 4 cyl tranny wiring harness work.
 
B

billyfresh40

New Member
Apr 14, 2006
6
0
0
Apr 26, 2006
#2
  • Apr 26, 2006
  • #2
ok, for starters the pedal assembly remove the drivers seat, for ease of installation, along with the steering column. i believe there are 4 bolts on the firewall, and another one on the top. remove throttle cable and brake light switch. remove pedals. next put in the new assembly, and remember to use the right hole with the clutch cable, and also remember that the clutch assembly ratchets, so u can use this to ur advantage when installing the cable.

next you will need a flywheel, and one matched for ur engine, older are internally bananced, while late models are external. take the flywheel to a machine shop and have it cut, and if they know ask them to be sure its the right flywheel.

u will have to hot wire the neutral saftey switch, which can be dangerous, but i prefer it if u know ur car's in neutral.

you will need a double hump crossmember and tranny mount.

as for a t-45, luckily i had a few t-5's at hand, but i know a 4-cyl tranny will work if u have the right pilot bearing..... i believe a smaller one but not sure
 
2

2002BLGT

Well-Known Member
Dec 18, 2003
2,945
4
59
Bedford VA
Apr 26, 2006
#3
  • Apr 26, 2006
  • #3
it can be done but the pilot bearing is the problem you will run into , my friend took a 4 cyl one and V8 pilot bearing to a machine shop and had a solid aluminum pilot bushing made using the measurements from both , and it held up under some 7.50 eighth mile passes like that for a whole season .....it eventually bent the output shaft ......
 

Georgie

New Member
Jul 13, 2005
455
0
0
Montreal, Canada
Feb 2, 2007
#4
  • Feb 2, 2007
  • #4
how could it bend the output shaft..that doesnt make sense..
 

bullitstang1313

Member
Jan 21, 2003
713
0
16
Indianapolis / Columbus, Indiana
Feb 2, 2007
#5
  • Feb 2, 2007
  • #5
Yes you can use a 4cylinder T-5 with a 5.0 engine. The diameter of the input shaft is smaller for a 4 cylinder T-5. You can find an old ranger pilot bearing that works or you can just use the 5.0 pilot bearing. I ran one in my car with the stock 5.0 pilot bearing for over 2 years with no problems. Eventually you can wear the input shaft and/or the bearing though.
 

samickguy15

Member
Sep 1, 2005
404
0
16
Delavan, IL
Aug 29, 2007
#6
  • Aug 29, 2007
  • #6
.

Use BCA 202-SS or 14672 bearing from Advance Auto, AutoZone, or wherever. They both measures .5906 ID and 1.378 OD. and cost about $15
 
2

2_fast_4_ya

New Member
Dec 5, 2004
11
0
0
norhtwest ark
Aug 29, 2007
#7
  • Aug 29, 2007
  • #7
4 cyl trannys are basically the same as the v8 but like being stated above the pilot bearing. Personally what i would do is to buy pilot bushing for both and get the O.D of the V8 bearing and get a brass unversal bushing and take the both to the local machine shop and have the bushing turned to the O.D of the v8 bearing and drilled to the O.D of the 4 cyl bearing to where its a press fit.
 

BlownFiveLiter

have car, will race....wait, it doesn't run
15 Year Member
Nov 29, 1999
3,133
18
108
Chicagoland
Aug 30, 2007
#8
  • Aug 30, 2007
  • #8
Why do that over a roller bearing? You'd have more invested in getting it machined than you would in buying the bearing, and you'd have more friction. I could understand if you're doing it for exact tolerances and it's not a big deal to replace with a clutch, but it just seemed odd to prefer a bushing over a bearing.
 
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