Author Topic: Transmission Question (Read 2551 times)

Lunnzz · « **on:** Dec 09, 2007, 10:04:36 PM »

I recently bought a 80 PU with a 5spd swap I believe it is a L-series trans. My question is when taking off from a stop if I am giving the truck any gas and letting the clutch out the transmission engages really hard it only does it in 1st & 2nd no other gear. I can let out the clutch without giving it any gas or let it out as slow as humanly possible and it also fine. What could be the problem. And another question will a W56 or R151 fit behind a 20R?

Thanks J

REG535 · « **Reply #1 on:** Dec 10, 2007, 06:16:27 PM »

I think both of those trannies should bolt up with no problems but dont take my word on this?, am not sure about the problem though, good luck

DanS · « **Reply #2 on:** Dec 10, 2007, 06:39:36 PM »

Welcome to

, I can assume you did not do the tranny swap and therefore you may not know what clutch was used, did they replace the throw out bearing or the pilot bearing? is the pressure plate in backwards?
Note : First and second gear are the hardest on a tranny, as the RPM and momentum increases it gets easier to shift the higher gears however, a properly set up clutch should not engage as hard as you indicate.
Give it some time for many of the knowledgeable members of this site too make further suggestions to your problem, good luck
DanS

79coyotefrg · « **Reply #3 on:** Dec 10, 2007, 06:40:16 PM »

Jeremiah, it sounds kinda like a ceramic clutch, not sure,

oh and WELCOME to Marlin

Lunnzz · « **Reply #4 on:** Dec 10, 2007, 07:46:37 PM »

Well the swap was done back in 2001 and according to the recipt the clutch, and bearing's were replaced. Now as to the conditon of the trans when installed is unknown. The recipt says "rebuilt" I'll run it until I have some real problems then it and the transfer case are coming out and either a W56 or R151 will go in which ever one will work gotta do some more research. Hey Glenn how have you been since the accident? Got the truck replaced yet? Well I live in Washington now no longer in Arkansas sold my 91 and bought a 80 with 148k on the clock runs real good just the small trans issue.

J

RN37DD · « **Reply #5 on:** Dec 11, 2007, 12:34:33 PM »

I've had a l43, a l45 and an l52 in my truck and some had broken gears and bad bearings and they all shifted fine. i think you might have a bad clutch. but it may also be the clutch slave cylinder or release fork. because if they removed an l43 and installed a l52 those parts are different. when i removed my l43 parts of the clutch fell on the ground!!!

Lunnzz · « **Reply #6 on:** Dec 11, 2007, 04:11:12 PM »

Well I'm just gonna wait until it takes a dump then swap in a W56 or R151 and then a new clutch and bearing's. It works great after 3rd gear..

DanS · « **Reply #7 on:** Dec 11, 2007, 05:33:31 PM »

If you have an opportunity to get the gear driven transfer case, go that route easing the swap of duals !

DanS

84pickup · « **Reply #8 on:** Dec 11, 2007, 05:40:50 PM »

i've got a ceramic clutch and it definetly doesn't do that. how do you put a pressure plate backwards?

79coyotefrg · « **Reply #9 on:** Dec 11, 2007, 05:50:32 PM »

WASHINGTON

what the heck you up there for??

pm me your address so i can send you a Arkie Christmas card

Lunnzz · « **Reply #10 on:** Dec 11, 2007, 07:48:06 PM »

Wife's dad is really sick got around a year or so left and the Air Force moved me back up here so she can be closer. He started Kemo last week as a last ditch effort to fight the lukimenia thats coming.. Sad thing is her mom died from the same thing 5yrs ago.. So we are trying to make the best of things..

79coyotefrg · « **Reply #11 on:** Dec 12, 2007, 09:21:27 AM »

Quote from: Lunnzz on Dec 11, 2007, 07:48:06 PM

Wife's dad is really sick got around a year or so left and the Air Force moved me back up here so she can be closer. He started Kemo last week as a last ditch effort to fight the lukimenia thats coming.. Sad thing is her mom died from the same thing 5yrs ago.. So we are trying to make the best of things..

aw man Jer im sorry

we have a "prayer request" thread here, http://board.marlincrawler.com/index.php?topic=13076.570

i'll keep the local guys posted

dt · « **Reply #12 on:** Dec 17, 2007, 12:37:43 PM »

I agree; wrong clutch parts,probably still has the 4 speed clutch arm etc.

Lunnzz · « **Reply #13 on:** Dec 18, 2007, 12:41:59 PM »

Parts have been in there for almost 7 yrs I am guessing there is no way to tell if is the 4spd clutch arm..?

RN37DD · « **Reply #14 on:** Dec 18, 2007, 03:23:35 PM »

the clutch arm on my l43 was cast and the one for the l52 is stamped steel. the l43 clutch pivot points were badly worn and so was the throw out bearing guide.